"Idol" judges Simon Cowell, Ellen DeGeneres and Kara DioGuardi left the show last season. Randy Jackson, the only original judge left on the show, is to return for Season 10, alongside Lopez and Tyler.
Asked how he felt about his new job, MTV.com quoted Tyler as saying: "Fabulous. Wonderful. Feels like the perfect feathered nest."
"It's being a part of something much bigger than yourself," he added. "I want to bring some rock to this roller coaster and show you that if you got the heart, you got the talent and you got the feeling to do this, you could be the next 'American Idol.'"
"I'm looking for the next Michael Jackson," Lopez said. "We're looking for the best 'American Idol' ever. I'm really excited. I really am."
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