They say money can't buy you happiness.

You know what? I'd be pretty chuffed if my money could buy me a performance by both Taylor Swift and Nelly. Tay took the Hamptons last night to help oil heir Mike Hess celebrate his birthday in style. Partygoers were treated to quite a show by Swift and Nelly. The duo stunned the crowd as they performed Nelly’s 2002 classic “Dilemma”. https://www.instagram.com/p/BI0gujyjOXq/?taken-by=treardropsonmyguitar Tay subbed in for Kelly Rowland parts during the iconic song and she looks like she is having the time of her life. The ‘trouble’ singer was wearing a black skirt and crop top combo while she danced and grinded in front of the audience. According to ENews, Tay’s boyfriend Tom Hiddleston was not present. An insider told the entertainment site “Taylor was in an amazing mood, and super fun all night. At first, she didn’t want to perform but then Nelly asked her. Everyone was super into it, the crowd loved it.” To top it all off, the birthday boy even received a kiss on the cheek from the pop princess. Taylor wasn’t the only famous face at this luxurious soiree. Onlookers spotted supermodel Karlie Kloss, who recently celebrated her 24 birthday this week. Model, Mum and entrepreneur Heidi Klum was also spotted at the do. It seems that the birthday boy and Harvard Business School graduate is really well connected. Photo’s dating as far back as last year show the lucky man cuddling up to the three beautiful women. https://www.instagram.com/p/ux0Pl4j1ba/ You can watch the video below. https://www.instagram.com/p/BI0fpsyDB7A/?taken-by=treardropsonmyguitar