Brooks & Dunn announced the lineup for the second leg of their summer and fall tour - and it's a stellar crowd. Montgomery Gentry and red-hot newcomer Gretchen Wilson will join Kix and Ronnie on their "Red Dirt RoadHouse Tour," which kicks off Aug. 12 in Columbus, Ohio and runs through Oct. 24 in Atlanta, Georgia. Ronnie's excited to have rising star Gretchen - who's equally as high-energy as the guys - on the bill. "Gretchen's got that same kind of vibe," he says. Ronnie adds that a good time will be had by all. "We're at our best when we're able to let our hair down, scratch up the dirt and just have a free-for-all."