Channing Tatum & Elton John Boogie on Stage During Revlon's Concert for the Rainforest Fund

Carnegie Hall in NYC was jumping on Tuesday night! As Elton John performed, Channing Tatum provided even more entertainment with some sizzlin' dance moves in the background.

OK! NEWS: JONAH HILL GOES "DONALD DUCKING" DURING DRUNKEN NIGHTS WITH CHANNING TATUMAs indicated by E! News, the next thing you know, Elton was singing "Diamonds Are a Girl's Best Friend" while bumping and grinding with Channing! Not only that, Elton took the opportunity to um, how shall we put this? Squeeze Channing's booty while he was in the vicinity.OK! NEWS: CHANNING TATUM DISHES NUDE SCENE IN THE VOW — "IT WAS GRATUITOUS"Elton jokingly told the crowd, "It has become a custom at these shows for me to humiliate myself."Perhaps Channing was showing off his moves as a precursor of what's to come in his movie about strippers in Magic Mike! His new film opens in theaters on June 29.