U2 will give the "American Idol" wannabes a taste of what megastars look like when they perform during the show's finale on Wednesday.
The Irish rockers, who picked up the Top Touring Artist Award at the 2011 Billboard Music Awards on Sunday night, will hit the stage for the big show a night after performing in Salt Lake City, Utah.
During the Idol finale, country singers Scotty McCreery and Lauren Alaina will discover who is the season 10 winner of American Idol.
Who do you think will win American Idol?
(Photo: Getty Images)