UnScramble this Word: w y o s b n e?

Questions

Artist : ...who sings "I Wish You Were A Beer"?

Artist : ...who sings the songs "Leave It" & "Owner of a Lonely Heart"?

Artist : ...who wrote the opera "Ave Verum"?

Artist talking about being a free man in Paris?

Artist: I could say day/And you'd say night/Tell me it's black when I know it's white?