Mark O'Connor is an American fiddle player, composer, guitarist, and mandolinist whose music combines bluegrass, country, jazz and classical. A three-time Grammy Award winner, he has won six Country Music Association Musician Of The Year awards and was a member of three influential musical ensembles: the David Grisman Quintet, The Dregs, and Strength in Numbers.

Douglas James Kershaw is an American fiddle player, singer and songwriter from Louisiana. Active since 1948, he began his career as part of the duo Rusty and Doug, along with his brother, Rusty Kershaw. He had an extensive solo career that included fifteen albums and singles that charted on the Hot Country Songs charts. He is also a member of the Louisiana Music Hall of Fame, being inducted in 2009.