2 of my favorites are Don't rain on my parade, and Second-hand Rose. i love good healthy singin'. really feel the music and sing with conviction. and if you are a little uncertain of the words, use any you want. your shower, your song, your words! no song police in this shower i assure you. when dh and i shower together we don't sing. both of us like to sing but we have never found a key we can both sing in and it sounds ok. most of the time it's like a vaccuum, it, er, pulls it in, as it were, and so forth and so on. i'm usually pretty good at creating harmony, but not while singing with my sweetie, and we can't dance together either.