Lady Gaga Is Next Week’s Mentor on American Idol

LOS ANGELES, CA - MARCH 28: (NO ARCHIVES/EDITORIAL USE ONLY) Singer Lady Gaga performs onstage at the Staples Center on March 28, 2011 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) Photo: Kevin Winter/2011 Getty Images

Lady Gaga, fresh off one of the highest-grossing tours of all-time, will be mentoring the final four American Idol contestants next week as they prepare to perform songs by songwriting duo Jerry Leiber and Mike Stoller. Yes, those Leiber and Stoller classics like "Love Potion No. 9," "Stand By Me," and "On Broadway" just have Lady Gaga written all over them. Take it away, Jimmy Iovine! [AmericanIdol/Twitter]