Karima El Mahroug of Morocco, known as Ruby Rubacuori, arrives for an autograph signing session in Vienna, March 2, 2011. The 18-year-old woman, who goes by the stage name "Ruby the Heart Stealer", is in Vienna to attend the traditional opera ball on Thursday, invited by Austrian businessman Richard Lugner. REUTERS/Lisi Niesner (AUSTRIA - Tags: ENTERTAINMENT)