My friend wants to pick all the songs. How do we switch who is navigating the menus in Dance Central 2?

Put your hands down at your side and have your friend raise their right arm straight out to their side. The menus should make a noise and change color. The menus are always the color of whichever player is navigating, either pink or blue. Be careful as you discuss with your friend which song to pick -- if you raise your right hand, you might accidentally steal the menus back! If that happens, just put your hands down and switch again. Once you've chosen a song, you'll both be able to pick your own skill level and dancer.