The Summer Sessions concerts start this summer with a performance by Sierra Hull in Oak Ridge on Saturday.

Hull, a native of Byrdstown, Tennessee, is an accomplished singer, songwriter, and instrumentalist who made her first Opry appearance  at the age of 10, a press release said. Her vocal debut album, “Secrets,” was released in 2008 and peaked at number two on the Billboard Top Bluegrass Albums chart. Hull has received numerous International Bluegrass Music Association nominations and received the Bluegrass Star Award presented by the Bluegrass Heritage Foundation in 2013, the press release said.

Opening for Hull will be The Po’ Ramblin Boys, a bluegrass band formed in the Great Smoky Mountains.

All Summer Sessions concerts are free and will be held from 6 to 9 p.m. at the pavilion in Alvin K. Bissell Park at 1401 Oak Ridge Turnpike in Oak Ridge. The concerts are sponsored by ORNL Federal Credit Union.