Caption This Picture: Carrie Underwood Puckers Up for Another Man

That's Carrie Underwood in the photo, leaning in with lips slightly parted to plant a smooch on Aerosmith frontman Steven Tyler. The rocker is also stretching his famous lips forward in anticipation. It's a difficult life being a rock'n' roll star, isn't it?

Before anyone becomes outraged, thinking Underwood is cheating on her hockey player husband Mike Fisher with the 'Dude Looks Like a Lady' singer, we'll remind you that it was all just for show. The musical pair took the stage together at the 2011 ACM Awards in Las Vegas, delivering one of the night's most memorable performance. He helped her on 'Undo It,' while she supported him during 'Walk This Way.' The kiss was just a kiss -- a quick peck on the lips to stir up the crowd. Kisses with grandma last longer than Tyler and Underwood's.