 Constable was born in the Liverpool Maternity Hospital (now Liverpool Women's Hospital) in Toxteth, Liverpool, Merseyside to parents Margaret and James "Jimmy" Matthews.He is a fan of Liverpool F.C..

Constable began his career in the early 1990s as a dancer on the late-night ITV dance music show "The Hit Man and Her".Whilst on the show, Constable met Simon "Spike" Dawbarn and Jason Orange.