FALL OUT BOY SINGS ACAPPELLA

FALL OUT BOY WERE FORCED TO PERFORM A CAPPELLA . . . AFTER FAILING TO GET A PERMIT TO PLAY IN NEW YORK CITY:

To hype their new album, "Folie a Deux" . . . (--which drops TODAY) . . . FALL OUT BOY planned on performing a spontaneous show yesterday in New York City's Washington Square Park. But the cops in New York weren't feeling it. The band failed to obtain the necessary permit to perform in the park . . . and the police told them that they'd be taken to JAIL if they picked up their instruments. So they decided to appease the fans that had gathered there . . . with a SING-A-LONG.

According to MTV News, they only sang one song, (the 2003 track) "Grand Theft Autumn / Where Is Your Boy". Then, they apologized to the crowd and hit the road.