The American pop musician Prince is rumoured to have a large collection of unreleased music locked away inside a vault. For years fans have speculated about whether the stories are true and just how much music there may be. The BBC’s Mobeen Azhar has been to Minneapolis in search of the truth.

Paisley Park Records was Prince’s record label, which was distributed by and funded in part by Warner Bros. Records. It was started in 1985, following the success of the film and album Purple Rain. The label shares its name with Prince’s recording complex Paisley Park Studios and the song “Paisley Park” on his 1985 Around the World in a Day album