Watch Jimmy Fallon and Maroon 5 surprise fans by busking in disguise

Maroon 5 and Jimmy Fallon took unsuspecting fans by surprise when they decided to go busking in disguise.

Lead singer Adam Levine hid his face under a large fake braided beard as he performed Crazy Little Thing Called Love with fellow bandmate, James Valentine and The Tonight Show host in a New York City subway station.

Passers-by were none the wiser until the trio took off their costumes and performed Maroon 5's hit song Sugar for the growing crowd.

Check out everyone's priceless reactions above.

This isn't the first time Jimmy has pulled this stunt, earlier this year he and Miley Cyrus tried to pull the wool over people's eyes by busking undercover.