As Doctor Who celebrates its fiftieth birthday, Huw Stephens meets fellow fans to tell The Story of Trock - aka Time Lord Rock.

Trock's a musical genre inspired by the stories and characters of Doctor Who, and made famous by YouTube video bloggers like Charlie McDonnell and Alex Day. We're going back in time to tell the story of the show, including a special message to Radio 1's Doctor Who fans from out-going Doctor Matt Smith.

From the Dalek-mania of the 60s to the show's phenomenal reboot in 2005, from a junkyard on Totters Lane to theatre-filling premieres in New York City, we're celebrating the Doctor's birthday with his biggest fans.