In October 2005, following a North American concert tour and a film appearance, Simpson released her second number-one album, I Am Me. Her third album, Bittersweet World, was released almost three years later in April 2008. The following month, she married musician Pete Wentz and announced that they were expecting a child. On November 20, 2008, Simpson gave birth to their son, Bronx Mowgli Wentz. Simpson filed for divorce on February 8, 2011, citing "irreconcilable differences."