His role as a stripper required Tatum to get rid of any excess body hair, so, in a scenario familiar to women everywhere, he headed off to get waxed.
Jimmy Fallon played a video of Tatum getting waxed, which showed the actor suffering -- a lot -- for his art.
As Channing lay red-faced and moaning in pain, his friend joked they could indulge in some other female-related activities afterward.
"Watch 'Sex And The City,'" he suggested. "Drink some wine. What do you say buddy?"
However, Tatum was in the Lamaze zone: "I can't talk right now," he groaned.
"Magic Mike" is in movie theaters Friday, June 29th, 2012. Check Moviefone for local listings."Late Night With Jimmy Fallon" airs weeknights, 12:37 a.m. ET on NBC.
TV Replay scours the vast television landscape to find the most interesting, amusing, and amazing moments - and delivers them right to your browser.
RELATED ON HUFFPOST:
HuffPost Entertainment is your one-stop shop for celebrity news, hilarious late-night bits, industry and awards coverage and more — sent right to your inbox six days a week. Learn more