Ed Sheeran, Alanis Morissette Subbing for Katy Perry, Lionel Richie on ‘American Idol’ as Guest Judges

American Idol will be down two judges on Sunday night (May 7) when Katy Perry and Lionel Richie jet to England to take part in the coronation of King Charles III. But they will have some serious ringers filling in during their absence: Ed Sheeran and Alanis Morissette.

During Monday night’s (May 1) show it was revealed that the pair will join Luke Bryan as guest judges on Sunday during the show’s “616” episode, where America will cast their votes for the top 5. Morissette will pull double-duty as guest judge and mentor to the top 10, who will perform her songs live, with the finalists also teaming up with each other on duets of Sheeran’s hits.

Both Sheeran and Morissette will perform on the episode, with Alanis sharing one of her classics and Sheeran playing his new single, the ballad “Boat.” And though Katy and Lionel will be getting the royal treatment, they will check in from Windsor Castle on Idol LIVE.

The top 10 battled it out on Monday night’s episode, with Hawaiian high-schooler Iam Tongi crushing it with his version of Louis Armstrong’s “What a Wonderful World,” complete with some homey touches. After ditching his trusty guitar for Sunday night’s episode during performance of Sam Cooke’s “Bring It On Home To Me,” Tongi donned a colorful Hawaiian shirt and performed with a ukulele. Tyson Venegas and Marybeth Byrd were eliminated, while Oliver Steele earned a judge’s save.

American Idol airs live coast-to-coast on Sunday from 8-10 p.m. ET/5-7 p.m. PT on ABC.