Martina McBride (only Linda Rondstadt and possibly Enya have more pure vocal talent, and Enya leans heavily on processing for her sound)
the Guess Who (they kept playing a free outdoor concert at a military base in West Texas in pouring rain with all of about 50 people standing around the stage screaming their heads off, and somehow I don't think U2 can say that)
Foghat (the best bar band in the world, no matter how big the bar)
the Moody Blues (the most complex backing music and vocals ever put on tape)
Queen (ok, Freddie was weird with a capital WEIRD, but very few groups did as many different things with music)