Josh Peck Battles Christina Milian on 'Lip Sync Battle'

Josh Peck shows off his muscles in a white vest and nothing underneath while giving his all for a performance on Lip Sync Battle, which aired on Thursday (May 19).

The 29-year-old actor battled against his Grandfathered co-star Christina Milian and he performed Sisqo‘s classic “Thong Song” for his second round choice.

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In the same round, Christina performed the Jennifer Lopez song “Waiting for Tonight.” Ultimately, Josh was the big winner.

Watch the full performances below!