Karen Hauer, 30, who was born in Venezuela and grew up in New York, first found fame on the US version of So You Think You Can Dance.
Karen Hauer, is replacing Katya Virshilas in Strictly Come Dancing Series 10. Karen has worked with singer Jennifer Lopez and is a former World Mambo Champion.
Ms Hauer, originally from Venezuela, has most recently been seen performing as the principal dancer in Burn The Floor, an international touring dance show.
She has won numerous ballroom awards including being crowned World Mambo Champion in 2008 – and has worked with stars including Jennifer Lopez.
Follow Karen Hauer on Twitter @karen_hauer