The 22 Jump Street actor, 35, who will most likely belt out "Let It Go," frolics across the dance floor in Elsa's sparkly blue dress and wears a white wig during the hilarious performance. (The 2013 Disney character was voiced by Idina Menzel.)
"I just really hope that my marriage isn't over after tonight," he jokes in a sneak peek.
The Supergirl actress, 35, quips: "Our house is divided at the moment. We're going to war!"
As previously reported, the Gambit hunk also twerks to a Beyonce hit. Queen Bey is rumored to be making a surprise appearance during the episode.
The "Tatum Takeover" on Lip Sync Battle premieres on Thursday, January 7, at 10 p.m. ET on Spike.
Watch the video above!