It is so on.
While Adam Lambert and his American Idol rival Kris Allen might be close pals, the same can't be said for this season's runner-up and Clay Aiken.
"I don't know Clay," Adam told Access Hollywood this week. "I'm glad he's getting headlines now though, because he wasn't before."
Lambert wasn't done. He added:
"If he wants to ride my coattails about it, good for him."
Choose a side in this feud: