Catherine Elizabeth "Cat" Deeley (born 23 October 1976) is an English disc jockey, television personality and former fashion model, who rose to fame at the age of 21, co-hosting the well-known children's series SMTV Live, alongside Anthony McPartlin and Declan Donnelly, for also hosting Stars in their Eyes since 2004, and for hosting So You Think You Can Dance, since its second season in 2006.