Keith Urban is returning to "American Idol" as Season 21's mentor for the final three contestants in the series finale on May 21.
It's familiar turf for Keith, who served as one of the three judges for "AI" in Seasons 12-15. He also served as a mentor on Australia's version of "The Voice".
Not only will Keith be working with and advising this season's Top 3, he'll be performing as well, singing his hit from last year, "Wild Hearts." Watch Keith do his thing - both things, mentoring and performing - this coming Sunday (May 21) at 8p Eastern on ABC.
Source: People