The upcoming episode of Lipsync Battle features actress Brooklyn Decker take on her husband, former tennis pro Andy Roddick. For the occasion, Decker brought out the big guns by inviting Serena Williams to join her onstage. The audience was clearly surprised by the tennis star's arrival. Williams' dramatic reveal drove the crowd to uproarious cheers. The hosts seemed just as shocked. Chrissy Teigen' reaction was quite endearing as she pretty much jumped for joy at the sight. Check out the clip below.

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The guest appearance is no coincidence given Decker's song choice. Since she selected Beyonce's "Sorry" for the battle, having Williams come through as she did for Beyonce's music video was a slick move. "You appeared in the actual video with Beyoncé, obviously, what was it like doing it live for the crowd here?" Lip Sync Battle co-host LL Cool J asked Williams in the preview clip. "Oh my God, it was so fun!" Williams said. "It was so fun, we're here to win this." Viewers will have to wait until the show airs to see whether the effort was enough to claim the victory. The Lip Sync Battle episode will be available in full Thursday, Jan. 31 at 9 p.m. ET/PT on Paramount Network.