Nancy has performed in a variety of specials including the Grammy Awards , the MTV Movie Awards , the American Music Awards , the Academy Awards , the Billboard Awards , and the Latin Grammy Awards and on television shows that include The Tonight Show , The Late Show with David Letterman and Chicago Hope . She has choreographed and directed world tours for artists such as Hilary Duff ("Metamorphosis Tour," "Most Wanted Tour"), Jesse McCartney ("Beautiful Soul Tour"), Aly and AJ ("On The Ride Tour," "Aly and AJ Tour"), Vanessa Hudgens ("Baby V Tour"), Ashley Tisdale ("All About Ashley Tour"), Colbie Caillat ("Coco World Tour") and six world tours with Latin superstar Chayanne.

Nancy's choreography can most recently be seen on the High School Musical concert tour, with Hayden Panettiere on PBS ' A Capitol Fourth with Ashley Tisdale on NBC 's Christmas at Rockefeller Center and on Disney's hit television series Hannah Montana . She has also done choreography and staging for American Idol. Nancy has also choreographed several music videos, including "Fly" for Hilary Duff , "Come Back To Me" for Vanessa Hudgens , "She's No You" for Jesse McCartney , "Potential Break Up Song" for Aly and AJ , "He Said, She Said" for Ashley Tisdale and "Monkey to The Man" for Elvis Costello.

Nancy's feature film dance credits include Showgirls , for which she also acted as assistant choreographer, The Wedding Planner , 13 Going on 30 The Country Bears , Forrest Gump , Austin Powers in Goldmember and Clerks II . Nancy has been a judge on Bravo 's dance reality series Step It Up and Dance along with world renowned choreographer Vincent Paterson and actress Elizabeth Berkley . She is currently represented for choreography and artistic direction by Abrams Artists Agency.