The weekend everyone has been waiting for is finally here. If you're anything like us, you've been counting down the (never-ending) work days until Swedish House Mafia's 5-day takeover in NYC. They began their "One Last Tour" last night with the Black Tie Rave at Hammerstein Ballroom. 100% of the proceeds from the night went to the Mayor’s Fund To Advance New York City, Hurricane Sandy New Jersey Relief Fund and Save The Children. Following last night's show, the trio will continue on to Madison Square Garden with Pete Tong and Armand Van Helden, and then finish up with three nights at the Barclays Center.

[All photos via Instagram]