In their latest week in review video, Sugarland take fans backstage to meet their current tour openers, Casey James and Little Big Town.

Casey James, a former 'American Idol' contestant, is tagging along with Jennifer Nettles and Kristian Bush on the March leg of their 2011 tour. The shaggy-haired Texas country hopeful is set to debut his premiere album later this year.

Little Big Town's Karen Fairchild, Kimberly Schlapman, Jimi Westbrook, and Phillip Sweet are no country music newcomers, but the quartet is grateful to be included in Sugarland's tour lineup. As of late, they've been keeping their vocal chords warm with this unexpected cover of Bruno Mars' 'Grenade.'

Casey James, his band, and Little Big Town have nothing but good things to say about Sugarland, whom they call humble and friendly folks. "I love being on tour with them because they bring it every night," LBT's Karen Fairchild tells the camera. "And if you don't bring it, you're going to get left behind."

This video leads fans through a backstage maze -- the inner-workings of the Sugarland duo's The Incredible Machine tour -- which currently has dates scheduled from now through the end of summer.

Check Out Casey James and Little Big Town on Tour With Sugarland