Hi,
There is a very short clip in the video on You Tube :Title:
Old London Trafalger & Leicester Square 1955.
I was a great fan of the Roadstars in the early 1960's. Often watched them on Saturday nights in Leicester Square outside the cinema. Their performance was always better than the film we were queuing to see !!
When we saw them, there was a woman on the accordion. I liked the bit where one of the guys would hail a passing cab, while showing his knee !!