From Wikipedia, the free encyclopedia Nadine "Hi-Hat" Ruffin is a choreographer of hip-hop dance from New York City. Ruffin has worked with Montell Jordan, Big Time Rush, Teddy Riley, P-Diddy, Wyclef, Shakira, Rihanna, Mary J. Blige, Eve, and Jay-Z. Ruffin's work is featured in many Missy Elliott m...