Ying Yang Twins are back. On Friday, the Atlanta duo is performing at Santo's Party House as part of the “Keep Calm And Twerk” Tour. Though rap fans haven’t heard from them in awhile, there’s no denying their catalogue. Santo's is about to be turned upside down.

XXL is now offering a lucky fan the chance to win two pairs of tickets for the show on Friday. The first person to email the correct answer to XXL@harris-pub.com with the email title: “Ying Twins At Gramercy” wins.

Question: What song was Ying Yang Twins featured on with Usher?

You can also purchase tickets here.