Ashlee Nicolle Simpson (born October 3, 1984) is an American pop rock singer, songwriter, and actress. Simpson, who is the younger sister of pop singer Jessica Simpson, rose to prominence in mid-2004 through the success of her number-one debut album Autobiography and the accompanying reality series The Ashlee Simpson Show. Simpson received widespread criticism when she used a pre-recorded vocal track on Saturday Night Live in October 2004. Following a North American concert tour and a film appearance, Simpson released a second number-one album, I Am Me, in late 2005. Her third album, Bittersweet World, is scheduled for release on April 22, 2008.