Guess The Genre #698 (Gathered by Ken Anderson)

Brothers Mills Brothers Hanson MBop
Brothers Osmond Andy Williams Show Brothers Jackson 5
Brothers BeeGees Horizontal Brothers Smothers Play It Straight
Brothers Winter Together Brothers Nelson After The Rain
Brothers Everly Songs Daddy Taught Brothers Clancy Flowers In The Valley

Answer: Brothers - Next is Guess the Genre #699 --->

Or, I don't want to guess - Show Me A List