All four coaches (Adam Levine, Gwen Stefani, Blake Shelton and Pharrell Williams) turned around.

During the Knockouts, Jamison covered "(Sittin' On) The Dock of the Bay", defeating his opponent (Blessing Offor) and advancing to the Live Playoffs.

During the Playoffs he covered Ed Sheeran's "Don't" and advanced to the Live shows, after being saved by Adam Levine.

In the top 5 Live shows, Jamison covered "Sugar" by Maroon 5 and "When I Was Your Man" by Bruno Mars and was voted through to the finale.

[6] As part of the Pittsburgh Pirates' Home Opening Day, Jamison sang the national anthem on April 13, 2015.

[9] In July 2019, Jamison joined the music staff Orchard Hill Church in Wexford, PA, after volunteering there since 2016; he continues to perform and record as a solo artist.