The final four "American Idol" contestants will have one heckuva mentor next week: the biggest pop star in the world (Sorry, Biebs).
Yes, Lady Gaga will help guide finalists James Durbin, Scotty McCreery, Haley Reinhart and Lauren Alaina during next week's round.
The "Born This Way" singer will mentor the final quartet through Wednesday's show, where they will sing songs written by Jerry Leiber and Mike Stoller, who penned most of Elvis Presley's hits as well as Ben E. King's classic, "Stand By Me." "American Idol" returns Wednesday on Fox at 8/7c. This season's champ will be announced on the show's May 26 finale.