Now this is how to celebrate a birthday party!!
Karlie Kloss was just one of the celeb onlookers in the Hamptons with friends on Saturday night, when Taylor Swift decided to step up and perform alongside rapper Nelly in a VERY memorable bash!!
Related: Calvin Turns Down Kanye West Duet Over Taylor Fears!
Of course, this wasn't the first time Tay and Nelly have joined up for a memorable musical experience!!
The Shake It Off singer and the Hot In Herre rapper got together for an impromtpu collab, and lucky for all of us, it was caught on camera for the rest of the world to enjoy even beyond the birthday bash!
Ch-ch-check out the two of them paired up for some performances to celebrate birthday boy and oil heir Mike Hess (below)!!!
Tags: amazing, birthday party, hamptons, karlie kloss, mike hess, music minute, nelly, new york, party poppin', taylor swift, twitter