I love this bit Jimmy Fallon does where he takes a famous singer (or group) down into the subway in a disguise and starts playing music. Of course a large crowd grows and they reveal who they actually are.
The disguise he had for himself and Maroon 5 was good, it wasnt’ until I really looked that I realized who it was. After they ripped off the beards and sunglasses, they performed one of their own songs. People were obviously SUPER excited.