Darius Rucker has finalized the lineup for his 2015 Darius Rucker and Friends benefit concert, which is set to take place on June 8 at Nashville's Wildhorse Saloon.

The sixth annual event will feature appearances from Little Big TownBrett Eldredge, the Brothers Osborne, A Thousand Horses and Steve Wariner, all of whom are coming together to raise money for St. Jude Children's Research Hospital. Rucker also has a surprise guest, who has not yet been announced, on the roster.

The next day (June 9), Rucker will host the Darius Rucker and Friends Celebrity Tee-Off golf tournament, also benefiting St. Jude. The events have raised over $400,000 for cancer research in previous years, with last year alone bringing in $120,000 combined from the concert and golf tournament and accompanying auction.

“Growing up, my mother instilled in me the importance of giving back. Whether it was mowing a neighbor’s yard or helping during the loss of a loved one, it’s important on so many levels,” Rucker says. “Just like St. Jude, I’ve been given so much from the music community over the years, so this is one of the ways I know how to say thanks.

"Not only is this one of my favorite shows all year, but it’s a great platform to remind so many of the incredible work done by St. Jude," he adds. "[They do] such amazing work for young cancer patients and their families, and I’m grateful to all my fellow artists and friends for coming together to have some fun and support such a great cause.”

Rucker's benefit will help kick off the 2015 CMA Music Festival, which officially begins on June 11. Various charity and music events are scheduled throughout Nashville during and prior to the festival, which runs until June 14. For more information, check out The Boot's complete coverage of the festival.

Country Stars Who Have Played Football

More From TheBoot