Holy guacamole!

Us Weekly got their hands on some footage of Channing Tatum shaking it in a Chippendales-style dance troupe in 1999, and um, WOW! You must watch this!

A then 18-year-old Channing performed under the alias "Chan Crawford," and London Steele, the owner of the Florida nightclub where the G.I. Joe hunk performed says, "He was shy at first, but he really knew how to work the stage. The women went crazy for him!"