Free Jonas Brothers Concert -- TONIGHT!

The Jonas Brothers will perform a free club concert tonight (June 11) at New York City’s Irving Plaza.

Kevin, Joe, and Nick tweeted, “Be there or be square. We want to see you.”

Admission will be on a first-come, first-served basis. The concert starts at 9 and will showcase songs from the boys’ new album, Lines, Vines and Trying Times, out June 15. Starting at 4PM, the first 700 fans will get wristbands for the show.

The JoBros will also perform tonight on CBS’ Late Night with David Letterman.