Taylor Swift and Nelly take the stage together in the Hamptons

While Taylor Swift was performing in the Hamptons this weekend, Nelly decided to take the stage with the “Shake It Off” singer for an all around fun show.

“I know you know that song,” Nelly said to Swift before performing the 2002 hit “Dilemma,” with Swift singing Kelly Rowland’s verse. The pair were there to celebrate the birthday of Harvard Business School graduate and oil heir Mike Hess.

Also present at the birthday party was Heidi Klum, Karlie Kloss and Leslie Odom Jr.