Remember The Clark Brothers who won Next Great American Band? In case you lost track of them, they've changed their name to "Sons of Sylvia", and are currently opening for Carrie Underwood on tour.
Their sound has changed a bit since they won the show... but they are still amazing. They are playing 5 songs (I think?) during their set, one of them being "Gimme Shelter", which they covered on NGAB.
Their debut album, "Revelation" is due to release on April 27th, and there is a 3 song EP available for download now on iTunes and Amazon. They're also featured on a "What Can I Say" from Carrie's new album, and they are performing it with Carrie on the tour as well.