Next Week's American Idol Judges: Who's Replacing Katy Perry and Lionel Richie

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Pair of music legends.Ed Sheeran and Alanis Morissette, who was already scheduled to mentor.

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So we can blame the royal family for this brief change. Both MIA judges will broadcast live from Windsor Castle on.

Sunday.Sunday's program will run live nationwide, with viewers' votes choosing this.

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Season's Top 5, which Ryan Seacrest will unveil at the end.

The remaining finalists will perform Morissette songs to celebrate her guest-mentoring.

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Sheeran and Morissette will perform solos and duets with the finalists.

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