Allison Holker

 Allison Renae Holker Boss (born on February 6, 1988) is an American dancer, choreographer, and actress. Holker has been involved in film, television, and concert tours. Her appearances on television's So You Think You Can Dance are famous. She was a contestant on Season 2 and also an all-star in Seasons 7-11 and 14.Allison Renae Boss, born on February 6, 1988 is an American choreographer as well as a dancer and actress. Holker has appeared on film, television and concerts. Her most prominent appearances include the show So You Think You Can Dance, as a contestant on season 2 as well as all-stars during seasons 7-11 and 14. Holker also performed with Earth, Wind and Fire during the Olympic Games' opening and closing ceremonies in 2002. She was also in the Disney films High School Musical and High School Musical 2. On television, she's been featured in a variety of commercials, and was a part of the top 8 in the second season of So You Think You Can Dance, and danced in the second season's SYTYCD nationwide tour. Louis Van Amstel choreographed a show titled "Ballroom with a Twist" and she performed with her and Clay Aiken, American Idol's Clay Aiken, in the PBS special "Tried and True". Holker was featured in the "Jar of Hearts" music video directed by Christina Perri. Holker was one Demi Lovato's back-dancers in September and October 2011, and was one of her back-dancers in the fall/winter months. Holker has been a teacher at various dance conventions and workshops across the nation, as well as branching into choreography. Holker collaborated with Brian Friedman as a backup dancer on The X Factor USA. She was a part of Dancing with the Stars with Stephen Boss on April 30 2013. They danced to Crystallize which was being broadcast live on Lindsey Stirling