Ranked by performance on chart
'Idol' Star Allison Iraheta on Scoring a Backup-Singing Gig on the Show
'American Idol' Alum Allison Iraheta's Band Halo Circus Teams Up With RoadNation for Crowdsourced National Tour
Jennifer Lopez on Las Vegas Residency: 'I've Been Preparing for This My Whole Life'
The New 'American Idol': A Cheeseburger, a Coke and a Smile (and Shut the F--- Up)
Ten Years of 'American Idol' Chart Dominance: Clarkson, Underwood, Daughtry, Fantasia, More