Several actors that I know of are pretty good musicians, singers, and entertainers in other fields.
It shouldn't come as too much of a surprise that someone who desperately doesn't want a proper job should have other strings to their bow. ;-)

I've also met 'serious musicians' who 'put their life on hold,' as Alan put it, and who never achieved much except personal satisfaction. If that. Along with most strivers in the field of Arts-with-a-capital-A. Should they be treated with automatic awe because they are single-minded? Or only the ones in the field that you like? I got chatting to a busker last evening, good singer/guitarist. Turned out his musicianship was a lure to catch new members for his church. He buttonholed me and it took ages to get away from him, politely. He played good soul and blues, though, very folky, with a voice like Johnny Cash's.


As a personal opinion, I wouldn't let Picasso paint MY shithouse wall. I'd want a tradesman who'd do a proper job. As Heinlein put it, "He used to be able to paint, but he got tired of it."