Jason Mraz, who made his Broadway debut in the hit musical Waitress in December, will return to the Brooks Atkinson Theatre June 12 to co-host “Cast Album Karaoke” along with Waitress cast member Tiffany Mann.

The post-show party will take place following the 7 PM performance. Interested audience members will be able to sign up before the show for the chance to sing one minute of any song in the show, accompanied by musical director Nadia DiGiallonardo.

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Waitress, which currently stars Katherine McPhee, tells the story of Jenna, an expert pie maker in a small town, who dreams of a way out of her loveless marriage with her husband Earl.

Based upon the 2007 motion picture written by Adrienne Shelly, Waitress is the first Broadway musical in history to have four women in the four top creative team spots, with a book by Jessie Nelson, a score by six-time Grammy Award-nominated singer-songwriter Sara Bareilles, choreography by Lorin Latarro, and direction by Tony Award-winner Diane Paulus.