Muscle! Muscle! Muscle! What?

Old Spice recently released yet another viral hit, this time it’s an interactive vimeo video that allows you to control muscle man Terry Crews’ muscles to play some impressive “muscle music.”

Not only is the video itself hilarious, but at the end you have the ability to record your own song.

“You allow people to be a part of the creative process. It becomes more than just, ‘Hey look at this video,’” said Jason Bagley, a creative director who worked on the project at Wieden + Kennedy.

It’s a genius campaign that intrigues you to strike up some new music and share it with your friends. As an added bonus, we’ve included a little diagram to help you create your next masterpiece.