Bluegrass duo the Roys are teaching country fans a thing or two about other forms of music. Siblings Lee and Elaine Roy, who recently performed at the 2013 Country Thunder Festival in Wisconsin, say they are steadily bringing fans over to their own brand of melodic bluegrass.

"At every country festival we hear the same thing at our autograph table from the fans," Elaine notes. "Wow. I'm a country music fan. I didn't know I liked bluegrass until I heard your music. So now I am a bluegrass fan."

"Turns out country music lovers are bluegrass music lovers, and we love it!" her brother adds.

The Roys hosted four days of the Roys' Pickin' Porch at the event, which included performances by the Henhouse Ramblers and Truman's Ridge, among others. The new addition to the country music festival easily earned the approval of Country Thunder Executive Producer Troy Vollhoffer.

"We couldn't be more pleased with the addition of the Pickin' Porch to this year's Country Thunder Wisconsin," he notes. "Bluegrass music is an entertaining blend of country, jazz, roots and americana music, and the Roys are incredible ambassadors of this genre of music. We are proud to offer this option of entertainment to our fans."

Not that the brother and sister only spent time on their own stage. The twosome also performed on the main stage, where they joined an all-star list of performers that included Keith Urban, Dierks Bentley, Brad Paisley and more.

The Roys' career definitely seems to be moving in the right direction. Their 2012 album, 'New Day Dawning,' re-entered the Billboard Bluegrass Albums Chart at No. 3 following their Wisconsin appearance, while their new CD, 'Gypsy Runaway Train,' is sitting in the No. 2 slot.

The Roys have a packed schedule for the remainder of the year. See a list of all of their upcoming concerts here.