Double diva alert… and J-Lo!

Former American Idol judge Steven Tyler tells Rolling Stone that Fox’s reality behemoth was “not my cup of tea” and reveals that Idol producers wanted him “to take the piss out of the kids” but says that’s just not him.

Someone better warn Mariah Carey—who joins American Idol for season 12 as Jennifer Lopez departs—that Fox likes to beat up on the kiddies (and probably punch puppies, too) because I don’t think she has a mean bone in her body.

Former Idol and current X Factor judge Simon Cowell agrees saying “I think she’s going to find it difficult to say no [to contestants]. She’s sweet.”

And he’s right, Mariah ain’t no meanie, but someone surely needs to be.

Idol has been missing its snark since Cowell left and without a bad cop on the panel there’s no conflict and no one to hate and the viewer needs that, we need a villain. It’s that simple.

So while Carey is telling the world “I am so excited to be joining Idol [and] can’t wait to get started,” Fox, no doubt, are looking at their bottom line and are willing to try anything to boost their flagging ratings—including paying Carey a reported $18 million—and maybe, just maybe, hire that villain.

And Fox producers—Nick Jonas is not it.