Holker is credited with a wide variety of work in film, television, and concert tours.She is known from her appearances on the television dance competition So You Think You Can Dance, where she was a contestant in season 2 and an all-star in seasons 7-11, and 14.Holker was born in Minnesota and grew up in Orem, Utah and graduated from Timpanogos High School in June 2006.
Holker was featured in the "Jar of Hearts" music video by Christina Perri.
In September/October 2011 Holker was one of Demi Lovato's backup-dancers.
Holker has taught at different dance conventions and workshops across the country, also branching out into choreography.
Holker was a backup-dancer on The X Factor USA working together with Brian Friedman.
On April 30, 2013, she performed a dance routine on Dancing with the Stars with Stephen "t Witch" Boss.