And there was the Osmonds who had a good career run. They did anything from barbershop quartet to disco. Mostly as a group they did bubblegum pop. The did some rock and later some disco. Marie Osmond did well in dabbling into country, She nailed a number 1 with "Paper Roses". And did well with her duet with Dan Seals "Meet me in Montana" which I like.
C.Dan