Britney Spears britmadge316.jpgBritney pic courtesy of Getty Images

Surprise!

Madonna will be joining Britney Spears on stage at her second NYC concert, according to In Touch Weekly. A source for the mag reveals that the queen and princess of pop will be performing a mashup of "Get Together" and "Trouble" called "Lose Control."

Oh, and NYC might not be the only city to witness the sticky and sweet duet - rumor has it Madonna may join Brit onstage in LA as well! Maybe she made the decision when she went to Brit's first NYC show last week?