The two guys pictured above aren't extras in Varsity Blues, nor were they the stars of any Stoney LaRue videos. These good ol' country boys are Muskogee natives Colton and Zach Swon, aka the Swon Brothers Band. They're finalists on this season of The Voice, and not surprisingly, they're being coached by Oklahoma's own Blake Shelton. They're also the first duo to ever advance this far in the show's history, and are touted (well, by NBC's teaser promos) as one of this season's frontrunners.
From their bio page on NBC: