Video: Channing Tatum's Secret Stripper Past

G.I. Whoa!

Usmagazine.com has obtained a video of Channing Tatum, 29, dancing in a Chippendales-style revue called Male Encounter in 1999.

Find out what other stars have secret stripper pasts!

Then 18, the star -- who performed under the alias "Chan Crawford" -- approached the troupe's owner London Steele at a now-defunct Florida nightclub about a job.

"He was shy at first, but he really knew how to work the stage," Steele tells Us, adding that Tatum lip-synched in the act and earned $50 a night (plus tips) during his year-long stint.

See photos of Channing Tatum and other shirtless stars!

"The women went crazy for him!" Steele added.

Unfortunately for them, the revue had a strict no-nudity policy.

Guess the star in these barely-there bikini photos.

Nevertheless, the actor --- who wed his Step Up costar Jenna Dewan on July 11 -- was so impressive he caught the eye of a female casting agent who put him in Ricky Martin's "She Bangs" music video.