'American Idol' Season 10 Power Players
'American Idol' Season 10 Power Players

Background: Forty years of superstardom don't lie -- as the frontman for iconic band Aerosmith, Steven Tyler has been rocking since the '70s and amassing a collection of hits that few modern-day artists can match. Since 1991 alone (when SoundScan began tracking album sales), Tyler and his bandmates have sold 30 million albums and 8 million tracks.

What he'll bring to "Idol": Many were surprised to see a veteran rocker like Tyler join "American Idol," but his experience can only benefit the show's contestants -- especially those who prefer to sing Beatles and Janis Joplin tunes over Stevie Wonder and Mariah Carey. Expect him to spot the most rock-friendly contestants early and champion them all season long, not to mention encourage the kind of conflict resolution skills that being in a band for four decades requires.

next: Randy Jackson

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