Diamond Rio is an American country music band from Nashville, Tennessee. The band consists of Marty Roe, Jimmy Olander, Dan Truman (keyboards), Dana Williams, Micah Schweinsberg (drums), and Carson McKee. The band was founded in 1982 as an attraction for the Opryland USA theme park in Nashville, Tennessee, and was originally known as the Grizzly River Boys, then the Tennessee River Boys. It was founded by vocalists Matt Davenport, Danny Gregg, and Ty Herndon, the last of whom became a solo artist in the mid-1990s. After undergoing several membership changes in its initial years, the band held the same membership from 1989 to 2023, which consisted of Roe, Olander, Truman, Williams, Brian Prout (drums), and Gene Johnson. After the latter two retired in 2022, they were respectively replaced by Schweinsberg and McKee.