Adam Lambert will be American Idol mentor next week

It's official: Season 9 will go down as the worst season ever of American Idol. We are looking at the biggest jump the shark moment next week.

From Entertainment Weekly:

Adam Lambert will serve as guest mentor on the April 13 episode of American Idol, a spokesperson for 19 Entertainment confirms exclusively to EW. Internet buzz began swirling this afternoon that Sony Music reps had contacted selected radio stations with the announcement that last year’s runner-up would advise season 9’s Top 8 contestants, and then perform his current single “Whattaya Want From Me” on the April 14 results-show telecast. There’s no official word yet on what theme the contestants will tackle during Lambert’s visit.

Source Entertainment Weekly