At the 50th Grammy Awards on February 10, 2008, Simpson was the winner of the "My Grammy Moment" contest, and played live with the Foo Fighters during the broadcast. In late February 2008, she recorded with The Hooters and played as a special guest with the band the Disco Biscuits. Later that year, Simpson performed multiple times as a special guest with the bands Switchfoot and Widespread Panic, and then performed with Ringo Starr on "Larry King Live", "The Late Late Show with Craig Ferguson", and at the Los Angeles House of Blues.