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The Voice is adding some big-time star power to Tuesday's fifth-season finale.

Lady Gaga, Celine Dion, Ne-Yo and OneRepublic will perform during the two-hour show (NBC, 9 p.m. ET/PT), which will reveal the latest winner of the NBC singing competition.

Lady Gaga will perform the single, Do What U Want, from her latest album, Artpop. Dion and Ne-Yo will sing a duet of Incredible, a song from Dion's new album, Loved Me Back to Life. OneRepublic will perform I Lived from its recent album, Native.

Other stars, whose names will be announced in the next few days, will perform, too.

The Monday edition of The Voice is averaging 14.8 million viewers, up 8% in viewers from last fall, and the Tuesday shows are drawing 14 million, a 14% increase from last year. The Voice ranks fourth in young adults among broadcast network shows.

On Monday's show (8 p.m. ET/PT), the three finalists, Will Champlin, Tessanne Chin and Jacquie Lee, will compete to become the next Voice.

OneRepublic founder Ryan Tedder, who serves as the in-house songwriter-producer for The Voice, is writing a single that will be sung by the new champion at the conclusion of Tuesday's finale.

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