who is the drummer for diamond rio
âItâs still distinctively Diamond Rio,â adds drummer Brian Prout. Diamond Rio has long been one of country musicâs most successful groups. The band released its platinum-selling debut disc in 1991. The following year, Diamond Rio won the Country Music Associationâs Vocal Group of the Year award for the first time. Theyâve scored nine No. 1 hits and placed 15 singles in the Top Five.