what group started out as linda ronstadt's backing band?

Linda Ronstadt’s backing band started out as a smallfolk/rock group that evolved into the Eagles. Specifically, the initial backing lineup for Ronstadt in the early 1970s included Glenn Frey, Don Henley, Bernie Leadon, and Randy Meisner. This quartet began as Ronstadt’s road and studio band, and, after touring together and writing with Ronstadt’s guidance, they decided to form their own group, which became the Eagles.