Steven Tyler didn't want to be an 'American Idol' judge.

The Aerosmith rocker has been a huge hit since joining Jennifer Lopez and Randy Jackson on the revamped judging panel for the 10th season of the talent show but he admits he was initially reluctant to take on the role because he didn't think there was enough talented people out there.

He told E! Online: "I never wanted to do 'American Idol'. I turned around and said, 'The show sucks. How can kids be [an] American idol? They haven't played clubs, they haven't paid their dues, that haven't done what we did.' I was wrong. They are out there, we just have to wade through a bunch of them."

Steven said there were lots of hopefuls who caught his eye, but it was finalist Lauren Aliana who had impressed him from the beginning.

He said: "When I first heard Lauren, seven months ago, it was the second city. You have to go through so many kids and she sang. She doesn't try to hit the notes, the words just go to that place. Everybody else is trying to hit the notes, and she's never had that problem with pitch. Maybe bad songs, but she's been perfect and right and great. I circled her months ago and said 'American idol.' Her and about six or seven others, but I heard her first. I mean how does a 15-year-old sing like that? How does that happen? That's magic, that's the gift, and that's what we're looking for."