A former American Idol judge reportedly wants to return to the competition show.  After the news of Carrie Underwood becoming a judge on the series, the person she replaced, Katy Perry, contemplates returning herself.  In the latest issue of Life & Style, a source reported that Katy's return would be in part because of the lackluster performance of her "143" album.   The source went on to admit that her return wouldn't happen anytime soon. "Carrie's got the gig now, and unless the new season is a disaster, there's no way Katy is getting back in that chair."  Source: tvshowcase.com