"Idol" fans have been left wondering if all is well between pop sensation Katy Perry and her long-time collaborator and friend, Adam Lambert, after a recent appearance on the hit singing competition show. When Lambert's former "American Idol" co-judge, Randy Jackson, stepped down, Perry and Lambert's fellow judge, Luke Bryan, were joined by special guest judge, Adam Glaser, for a recent episode. However, eagle-eyed viewers noticed a palpable tension between Perry and Lambert, sparking rumors of a possible feud. Could a behind-the-scenes disagreement be brewing between two of the show's most beloved personalities?
"Idol" fans speculated there was tension between the pair after Glaser served as a guest judge on the show.
