The B quiz

[smouse]

65 US rock singer who served 3 years in a reform school for armed robbery worked in a factory and trained as a hairdresser

I can find someone who fits the first bit but no reference of the other two bits

[nattrust]

Chuck Berry served 3 years in reform school for armed robbery and also trained as a hairdresser but I don't know if he worked in a factory.

[grasscarp]

He was so quick and ambitious that he both served three years in reform school on a robbery conviction and acquired a degree in hairdressing and cosmetology before taking a job on an auto assembly line to support a wife and kids

Found this on robertchristgau.com website and it refers to Chuck Berry

[teddybears]

I missed out again just about to post my answer Chuck Berry when some one can to the door, I will keep trying

[smouse]

thanks all three of you - I plod on