Now that you've got the invite to MTV's "NYE In NYC 2012" official New Year's Eve celebration, live from the MTV Studios in Times Square, with performances by Demi Lovato, Selena Gomez, Jason Derulo, Mac Miller and J. Cole, hosted by Demi (yes, she's pulling double duty) and "Teen Wolf"'s Tyler Posey, it's time to get the party started by voting for the ultimate new year's dance anthem.

One of the hot dance songs below will be featured in a special new year's surprise during the show. We can't tell you what that surprise will be (that's why it's a surprise), but we're giving you a say in picking MTV's new year's dance jam. So vote for your favorite song from 2011 -- from Britney's postapocalyptic "Till The World Ends" to Pitbull's dance floor-filler "Give Me Everything" to Rihanna's bittersweet "We Found Love," featuring Calvin Harris. Tune in to MTV on Saturday, Dec. 31, at 11 p.m. ET to see the winning song in action. You've got until Thursday, Dec. 29, at noon ET to vote.

+ Vote for your favorite song of 2011 for MTV's 'NYE In NYC 2012.' Tune in New Year's Eve to see which song won!