How to unlock MSG Concerts Badge Foursquare

How to unlock:

check in at: https://foursquare.com/mobile/checkin?vid=4ae6363ef964a520aba521e3

Check-in at Madison Square Garden in NYC during a concert (remember to select the event) and get a new badge

MSG Concerts Badge message: Ticket stubs. Flashing lights. Booming bass. Here's to good music in THE WORLD'S MOST FAMOUS ARENA. Now pocket your phone and sing along as loud as you can. It's not a good show unless your voice is hoarse in the morning.