Rock You Sinners is a British musical from 1957, starring Philip Gilbert as Johnny Laurence (bottom left image).
As a DJ, Laurence wants to make the big-time but it causes issues with his girlfriend along the way.
It all works out in the end though, they get back together and he gets a television series contract.
Lots of groups and artists from the 50s (Art Baxter, Tony Crombie, Joan Small and more) feature, as well as a young Jackie Collins.
Movie pages here.