Little Big Town and Vince Gill, among others, will be putting on uniforms to play in the City of Hope Celebrity Softball Game during the 2015 CMA Music Festival.

The annual event will be celebrating its 25th anniversary at this year's festival. All proceeds benefit City of Hope, an independent biomedical research and cancer center in California. Other artists set to step up to the plate during this year's game include Aaron Watson, Nashville's Charles Esten, Chuck Wicks, Lauren Alaina, Lindsay Ell and Love and Theft. The full lineup of players will be announced in the coming weeks.

The City of Hope Celebrity Softball Game is set for 9AM on June 13 at Nashville's First Tennessee Park. Tickets range from $25 to $55 and are available via CityOfHope.org.

The 2015 CMA Music Festival is set to take place June 11-14 in Nashville. The event features almost-nonstop live music from country's biggest stars throughout downtown Music City, with a huge lineup that includes Eric ChurchBrad PaisleyLuke BryanJason AldeanSam Hunt, Little Big TownDarius RuckerKeith UrbanDierks Bentley, Alan JacksonRascal FlattsCole SwindellFlorida Georgia Line, Lady Antebellum and many more. More information, including a complete list of performers and their show times, is available at CMAWorld.com.

See a Childhood Photo of Vince Gill