Blake Shelton, the renowned country music star from Oklahoma, will be the celebrity guest picker on ESPN's 'College GameDay' this Saturday in Norman, announced on the 'Pat McAfee Show.' Shelton will join the show ahead of the No. 15 Oklahoma Sooners' first SEC game against the No. 6 Tennessee Volunteers, marking 'GameDay's' first visit to Norman since 2020. The Sooners, with a 3-0 record, face a tough challenge against the undefeated Volunteers. Shelton, who has achieved 28 No. 1 Billboard Country hits and is known for his role on NBC's 'The Voice,' is expected to pick the Sooners to win. 'College GameDay' starts at 8 a.m., with the game kicking off at 6:30 p.m.