A lot of crazy stuff seems to occur at San Diego's Comic-Con ever year, but color this the least likely. Channing Tatum, who does the voice of "Joaquin" in an upcoming animated film called The Book of Life, joined Biz Markie in a stirring (strange?) rendition of "Just A Friend," a song that appears in the film.
Biz really takes it away though, and it appears that Tatum might not actually know the words, but is really just along for the ride. The ride of his life.