If Ashlee Simpson's stomach was upset Saturday night, imagine how she's feeling now.
Busted for a "Saturday Night Live" lip-synch gone awry, her manager-father said Monday his 19-year-old daughter used the extra help because acid reflux disease had made her voice hoarse.
"Just like any artist in America, she has a backing track that she pushes so you don't have to hear her croak through a song on national television," Joe Simpson told Ryan Seacrest on Los Angeles radio station KIIS-FM. "No one wants to hear that."
"The whole situation was a bummer," Ashlee Simpson told MTV.
Simpson had performed her hit single "Pieces of Me" without incident earlier on "SNL." When she came back a second time, her band started playing, and the first lines of her singing "Pieces of Me" could be heard again.
She was holding her microphone at her waist at the time. Simpson looked momentarily confused as the band played on and the vocal was quickly silenced.
A flustered Simpson made some exaggerated hopping dance moves, then walked off the stage.
Ashlee is the sister of singer Jessica Simpson.