We knew 'Step Up' and 'Magic Mike' actor Channing Tatum can dance. But can he sing?
At the San Diego Comic-Con panel for the animated feature, 'The Book of Life,' rapper Biz Markie made a surprise appearance during the Q&A and began singing his 1989 hit, 'Just a Friend.' To the audience's delight, Tatum joined in with him to sing the familiar words. Click on the video above to check out the memorable moment.