they tend to be attractive, yes. talented? no...
now, spend some time in the underground looking for actually talented musicians, and tell me how many of them are able to survive without an alternate source of income. in case after case you'll find that they come from wealthy families and don't have to work, or they have some other job that pays the bills.
the connection between talent and income is non-existent - it's a scatter-plot, with no discernible relationship in any direction at all, except maybe a weak inverse relationship.
and, that holds for virtually every other art form, as well, with the possible exception of film, which requires massive startup costs to exist.