Britney Spears and Kevin Federline arrive for the 2004 Billboard Music Awards in Las Vegas, Nevada in this December 8, 2004 file photo. Spears will pay child support of $20,000 to Kevin Federline and will make a final payment of $250,000 to his legal firm, according to an agreement between the couple filed in court on July 25, 2008. The monthly child support payment amounts to a $5,000 increase over the total that Spears and Federline agreed to last year, the court papers showed. REUTERS/Steve Marcus/Files (UNITED STATES) 

Los Angeles County Superior Court spokesperson Alan Parachini talks to reporters after a hearing on the child custody dispute between pop singer Britney Spears and former husband Kevin Federline in Los Angeles, California, January 23, 2008. Spears failed on Wednesday in her latest bid to regain the right to see her two young sons after again ducking a court hearing on the issue, Parachini said. REUTERS / Hector Mata (UNITED STATES) 

Mark Kaplan, the lawyer of pop singer Britney Spears' former husband Kevin Federline, speaks with reporters at a news conference outside the Los Angeles County Superior Court in California January 23, 2008. Spears failed on Wednesday in her latest bid to regain the right to see her two young sons after again ducking a court hearing on the issue, Los Angeles court officials said. REUTERS / Hector Mata (UNITED STATES) 

Mark Kaplan, the lawyer of pop singer Britney Spears' former husband Kevin Federline, speaks with reporters at a news conference outside the Los Angeles County Superior Court in California January 23, 2008. Spears failed on Wednesday in her latest bid to regain the right to see her two young sons after again ducking a court hearing on the issue, Los Angeles court officials said. REUTERS / Hector Mata (UNITED STATES) 

Mark Kaplan, the lawyer of pop singer Britney Spears' former husband Kevin Federline, speaks to reporters at a news conference outside the Los Angeles County Superior Court in Los Angeles, California, January 23, 2008. Spears failed on Wednesday in her latest bid to regain the right to see her two young sons after again ducking a court hearing on the issue, Los Angeles court officials said. REUTERS / Hector Mata (UNITED STATES) 

Mark Kaplan, the lawyer of pop singer Britney Spears' former husband Kevin Federline, is followed by a cameraman as he prepares for a news conference outside the Los Angeles County Superior Court in California January 23, 2008. Spears failed on Wednesday in her latest bid to regain the right to see her two young sons after again ducking a court hearing on the issue, Los Angeles court officials said. REUTERS / Hector Mata (UNITED STATES) 

Britney Spears' boyfriend Adnan Ghalib (R) stands outside an SUV carrying Spears before leaving the Los Angeles County courthouse shortly after she exited the vehicle and then reentered without going inside for a hearing regarding visitation rights for her two sons with ex-husband Kevin Federline in Los Angeles January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Mark Vincent Kaplan, Kevin Federline's attorney, makes a statement to the media outside the Los Angeles County Superior Court courthouse regarding a custody battle for Federline's and Britney Spears' two sons in Los Angeles January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Britney Spears' ex-husband Kevin Federline (2nd-L) sits in the back seat of an SUV driven by his attorney, Mark Vincent Kaplan (R), as he arrives to the Los Angeles County courthouse after a lunch break from a hearing regarding visitation rights for their two sons, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Mark Vincent Kaplan (C), Kevin Federline's attorney, makes a statement to the media outside the Los Angeles County Superior Court courthouse regarding a custody battle for Federline's and Britney Spears' two sons, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Mark Vincent Kaplan, Kevin Federline's attorney, walks to make a statement to the media outside the Los Angeles County Superior Court courthouse regarding a custody battle for Federline's and Britney Spears' two sons, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Media surround the car carrying Britney Spears' ex-husband Kevin Federline as he leaves for a lunch break from the Los Angeles County courthouse during a hearing regarding visitation rights for their two sons in Los Angeles, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

An SUV carrying Britney Spears leaves the Los Angeles County courthouse after she exited the vehicle and then reentered without going inside for a hearing regarding visitation rights for her two sons with ex-husband Kevin Federline in Los Angeles January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Britney Spears' ex-husband Kevin Federline (R) sits in the back seat of an SUV as he arrives at the Los Angeles County courthouse after a lunch break from a hearing regarding visitation rights for their two sons in Los Angeles January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

An LAPD officer prepares to give tickets to photographers and videographers who ran into the street to chase after the car carrying Britney Spears' ex-husband Kevin Federline as he left for a lunch break from the Los Angeles County courthouse during a hearing regarding visitation rights for their two sons in Los Angeles, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

A LAPD officer gives a ticket to a photographer who ran into the street after the car carrying Britney Spears' ex-husband Kevin Federline as he left for a lunch break from the Los Angeles County courthouse during a hearing regarding visitation rights for their two sons in Los Angeles, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

LAPD officers prepare to give a ticket to a photographer who ran into the street after the car carrying Britney Spears' ex-husband Kevin Federline as he left for a lunch break from the Los Angeles County courthouse during a hearing regarding visitation rights for their two sons in Los Angeles, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Media surround Michael Sands, spokesman for Kevin Federline's attorney Mark Vincent Kaplan, as he speaks outside the Los Angeles County Superior Court courthouse while they await the arrival of Britney Spears for a hearing regarding visitation rights for her two sons that she has with ex-husband Kevin Federline in Los Angeles, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Members of the media read newspapers as they wait for Britney Spears to arrive at the Los Angeles County Superior courthouse for a hearing regarding visitation rights for her two sons that she has with ex-husband Kevin Federline, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

TMZ.com live stream coordinator Daria Saidi waits for the arrival of Britney Spears at the Los Angeles County superior courthouse for a hearing regarding visitation rights for her two sons that she has with ex-husband Kevin Federline, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Members of the media wait for Britney Spears to arrive at the Los Angeles County Superior courthouse for a hearing regarding visitation rights for her two sons that she has with ex-husband Kevin Federline, January 14, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Members of the media wait outside following a court appearance by attorney Mark Vincent Kaplan in Kevin Federline's child custody battle with Britney Spears in Los Angeles January 4, 2008. REUTERS/Phil McCarten (UNITED STATES) 

Michael Sands, publicist for Kevin Federline's attorney Mark Vincent Kaplan, speaks to the media following a court appearance by Kaplan in Federline's child custody battle with Britney Spears in Los Angeles January 4, 2008. REUTERS/Phil McCarten (UNITED STATES) 

Michael Sands, publicist for Kevin Federline's attorney Mark Vincent Kaplan, speaks to the media during a court appearance by Kaplan in Federline's child custody battle with Britney Spears in Los Angeles January 4, 2008. REUTERS/Phil McCarten (UNITED STATES) 

Television trucks are parked at the Cedars Sinai Hospital in Beverly Hills January 4, 2008. Lawyers for Kevin Federline, ex-husband of pop star Britney Spears, went to court on Friday seeking to strip the troubled singer of visitation rights to their sons hours after she was hospitalized following a fit of hysterics. Television reports showed Spears, 26, being taken out of her home on a gurney early on Friday and driven to Cedars-Sinai Medical Center in an ambulance. REUTERS/Hector Mata (UNITED STATES) 

A television truck is parked at the Cedars Sinai Hospital in Beverly Hills January 4, 2008. Lawyers for Kevin Federline, ex-husband of pop star Britney Spears, went to court on Friday seeking to strip the troubled singer of visitation rights to their sons hours after she was hospitalized following a fit of hysterics. Television reports showed Spears, 26, being taken out of her home on a gurney early on Friday and driven to Cedars-Sinai Medical Center in an ambulance. REUTERS/Hector Mata (UNITED STATES) 

Mark Vincent Kaplan, attorney for Kevin Federline, Britney Spears' ex-husband, is shown in Los Angeles in this October 11, 2007 file photograph. According to celebrity web site tmz.com, Kaplan is expected to be in court January 4, 2008 to ask a court commissioner to strip Spears of her visitation rights to the couple's two young sons. Spears was taken to a Los Angeles hosiptal by ambulance on a "medical hold" January 3, 2008. REUTERS/Fred Prouser/Files (UNITED STATES) 

Mark Vincent Kaplan, attorney for Kevin Federline, Britney Spears' ex-husband is shown in Los Angeles in this October 11, 2007 file photograph. According to celebrity web site tmz.com. Kaplan is expected to be in court January 4, 2008 to ask a court commissioner to strip Spears of her visitation rights to the couple's two young sons. Spears was taken to a Los Angeles hosptial by ambulance on a "medical hold" January 3, 2008. REUTERS/Fred Prouser/Files (UNITED STATES) 

A child believed to belong to Britney Spears is driven away from her home in Studio City, California January 3, 2008 after police and paramedics were called to her home following a custody dispute with her ex-husband Kevin Federline. Spears was in a Los Angeles hospital January 4, 2008 after throwing a hysterical fit during a custody handover of her two sons. Photo taken January 3, 2008 REUTERS/Gene Blevins (UNITED STATES) BEST QUALITY AVAILABLE 

A child believed to belong to Britney Spears is driven away from her home in Studio City, California January 3, 2008, after police and paramedics were called to her home following a custody dispute with her ex-husband Kevin Federline. Spears was in a Los Angeles hospital on January 4, 2008 after throwing a hysterical fit during a custody handover of her two sons. Photo taken January 3, 2008. REUTERS/Gene Blevins (UNITED STATES) BEST QUALITY AVAILABLE 

Britney Spears (R) drives past photographers as she arrives for a child custody hearing in Los Angeles, California October 26, 2007. Lawyers for Spears and ex-husband Kevin Federline returned to court on Friday in the bitter custody battle over the celebrities' two sons that is expected to yield information on whether Spears has complied with random drug tests. REUTERS/Fred Prouser (UNITED STATES) 

Britney Spears (R) drives past photographers as she arrives for a child custody hearing in Los Angeles, California October 26, 2007. Lawyers for Spears and ex-husband Kevin Federline returned to court on Friday in the bitter custody battle over the celebrities' two sons that is expected to yield information on whether Spears has complied with random drug tests. REUTERS/Fred Prouser (UNITED STATES) 

Britney Spears (R) drives past photographers as she arrives for a child custody hearing in Los Angeles, California October 26, 2007. Lawyers for Spears and ex-husband Kevin Federline returned to court on Friday in the bitter custody battle over the celebrities' two sons that is expected to yield information on whether Spears has complied with random drug tests. REUTERS/Fred Prouser (UNITED STATES) 

Britney Spears (L) walks out of a courthouse garage as she arrives for a child custody hearing in Los Angeles, California October 26, 2007. Lawyers for Spears and ex-husband Kevin Federline returned to court on Friday in the bitter custody battle over the celebrities' two sons that is expected to yield information on whether Spears has complied with random drug tests. REUTERS/Fred Prouser (UNITED STATES) 

Britney Spears walks out of a courthouse garage as she arrives for a child custody hearing in Los Angeles, California October 26, 2007. Lawyers for Spears and ex-husband Kevin Federline returned to court on Friday in the bitter custody battle over the celebrities' two sons that is expected to yield information on whether Spears has complied with random drug tests. REUTERS/Fred Prouser (UNITED STATES) BEST QUALITY AVAILABLE 

Britney Spears arrives at the Los Angeles County Superior Court October 26, 2007. Lawyers for Spears and ex-husband Kevin Federline returned to court on Friday in the bitter custody battle over the celebrities' two sons that is expected to yield information on whether Spears has complied with random drug tests. REUTERS/Max Morse (UNITED STATES) 

Singer Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles in this February 8, 2006 file photograph. Los Angeles County Superior Court Judge Scott Gordon issued an order October 1, 2007 stating that Kevin Federline, the boys' father, "is to retain physical custody of the minor children on Wednesday, October 3, 2007 at 12:00 PM until further order of the court." REUTERS/Chris Pizzello/Files (UNITED STATES) 

Mark V. Kaplan, attorney for Britney Spears ex-husband Kevin Federline, speaks to media after a hearing in Los Angeles, California September 17, 2007. Kaplan told reporters his client was not seeking more money from Spears and said a new custody hearing would likely come in mid-November. REUTERS/Sam Mircovich (UNITED STATES) 

Superior Court of Los Angeles County Public Information Director Allan Parachini informs members of the media that there was to be no custody hearing between Kevin Federline and Spears in Los Angeles, California February 22, 2007. REUTERS/Max Morse (UNITED STATES) 

Aspiring rapper Kevin Federline, who is currently separated from his wife pop star Britney Spears, watches an NBA basketball game between the Atlanta Hawks and Miami Heat in Atlanta, Georgia November 18, 2006. REUTERS/Tami Chappell (UNITED STATES) 

Actress Shar Jackson arrives at a party held by Sony Computer Entertainment America celebrating the new Playstation 3 game console in Beverly Hills November 8, 2006. Jackson has two children with dancer-rapper Kevin Federline, who is in the process of divorce proceedings with singer Britney Spears. The Sony Playstation 3 game console will be released in U.S. stores November 17. REUTERS/Fred Prouser (UNITED STATES) 

Rapper Kevin Federline appears on the television program 'MuchOnDemand' to promote his debut release 'Playing with Fire' in Toronto, November 6, 2006. REUTERS/Mike Cassese (CANADA) 

Rapper Kevin Federline (C) performs during an appearance on the television program 'MuchOnDemand' to promote his debut release 'Playing with Fire' in Toronto, November 6, 2006. REUTERS/Mike Cassese (CANADA) 

Rapper Kevin Federline (L) performs during an appearance on the television program 'MuchOnDemand' to promote his debut release 'Playing with Fire' in Toronto, November 6, 2006. REUTERS/Mike Cassese (CANADA) 

Rapper Kevin Federline (C) performs during an appearance on the television program 'MuchOnDemand' to promote his debut release 'Playing with Fire' in Toronto, November 6, 2006. REUTERS/Mike Cassese (CANADA) 

Kevin Federline arrives at the launch party for XBOX 360 game "Gears of War" at the Hollywood Forever Cemetery in Los Angeles October 25, 2006. REUTERS/Max Morse (UNITED STATES) 

Kevin Federline arrives at the launch party for XBOX 360 game "Gears of War" at the Hollywood Forever Cemetery in Los Angeles October 25, 2006. REUTERS/Max Morse (UNITED STATES) 

Performer Kevin Federline holds up his phone after signing a petition to save the penny as part of a Virgin Mobile campaign in New York June 21, 2006.
REUTERS/Shannon Stapleton (UNITED STATES) 

Performer Kevin Federline holds up his phone after sending a one penny text message as part of a Virgin Mobile campaign in New York June 21, 2006.
REUTERS/Shannon Stapleton (UNITED STATES) 

Kevin Federline, [husband of singer Britney Spears], gestures as he watches the [Miami Heat and the Dallas Mavericks in Game 5 of their] NBA Finals basketball game in Miami June 18, 2006. 

Kevin Federline, husband of singer Britney Spears, gestures as he watches the Miami Heat and the Dallas Mavericks in Game 5 of their NBA Finals basketball game in Miami June 18, 2006. REUTERS/Marc Serota (UNITED STATES) 

Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles February 8, 2006. 

Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles February 8, 2006. 

Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles February 8, 2006. REUTERS/Chris Pizzello 

Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles February 8, 2006. REUTERS/Chris Pizzello 

Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles February 8, 2006. REUTERS/Chris Pizzello 

Britney Spears (R) and her husband Kevin Federline arrive for the Sony BMG Grammy Party in Los Angeles February 8, 2006. REUTERS/Chris Pizzello 

Britney Spears (L) and her husband Kevin Federline attend the worldwide premiere of Warner Brothers "Charlie and the Chocolate Factory" at the Grauman's Chinese theatre in Hollywood on July 10, 2005. [The film is based on the novel by Roald Dahl and tells the story of kids who win a tour of the Willy Wonka chocolate factory. It opens in the United States on July 15, 2005. ] 

Britney Spears and her husband Kevin Federline attend the worldwide premiere of "Charlie and the Chocolate Factory". Britney Spears (L) and her husband Kevin Federline attend the worldwide premiere of Warner Brothers "Charlie and the Chocolate Factory" at the Grauman's Chinese theatre in Hollywood on July 10, 2005. The film is based on the novel by Roald Dahl and tells the story of kids who win a tour of the Willy Wonka chocolate factory. It opens in the United States on July 15, 2005. REUTERS/Mario Anzuoni 

Britney Spears and her husband Kevin Federline attend the worldwide premiere of "Charlie and the Chocolate Factory". Britney Spears (L) and her husband Kevin Federline attend the worldwide premiere of Warner Brothers "Charlie and the Chocolate Factory" at the Grauman's Chinese theatre in Hollywood on July 10, 2005. The film is based on the novel by Roald Dahl and tells the story of kids who win a tour of the Willy Wonka chocolate factory. It opens in the United States on July 15, 2005. REUTERS/Mario Anzuoni