New York theatergoers got a special treat Monday when Cher dropped by the opening night of The Cher Show , the new Broadway musical based on her life, for a surprise performance.

The diva, 72, joined the cast of the musical onstage during a curtain call before launching into her 1989 hit, If I Could Turn Back Time, alongside Stephanie J. Block , one of three actresses portraying her in the show.

Block, a two-time Tony Award nominee, gushed about the experience on Instagram alongside a photo of the two women embracing.