District court Judge Wacker opens the trial against Nadja Benaissa, German pop singer with the girlband 'No Angels' in a courtroom in the western city of Darmstadt August 16, 2010. Benaissa, 28, accused of knowingly exposing three men to the risk of HIV has confessed to having unprotected sex after finding out she had the virus, authorities said on Monday. One of her partners later contracted AIDS, while the two others were not infected with HIV. REUTERS/Boris Roessler/Pool (GERMANY - Tags: CRIME LAW ENTERTAINMENT PROFILE)