Serena Williams Is a Lip Sync Battle 'Double Agent,' Appears with Brooklyn Decker and Andy Roddick

Serena Williams knows how to finesse a Lip Sync Battle win.
Though it originally appeared that the tennis great had taken sides in Brooklyn Decker and Andy Roddick’s showdown on the series, Williams pulled a fast one, appearing in each of the stars’ final performances.
In a teaser clip from the Thursday episode shared earlier this week, Decker, 31, had Williams, 37, join her onstage for her performance of Beyoncé‘s hit track, “Sorry.”
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