Charlie Daniels has tapped a number of friends to join him in staging his 40th Anniversary Volunteer Jam. Trace Adkins, Craig Morgan, and The Oak Ridge Boys are among those who’ve signed on for the event, which will also feature Travis Tritt, Montgomery Gentry, Trace Adkins, Craig Morgan, and others. With the event Charlie is supporting those who serve the country. Money from this year’s festival will go to Daniels’ Journey Home Project, an organization the singer established to raise awareness of military-related charities and assist in their efforts. The 2015 Volunteer Jam will take place at Nashville’s Bridgestone Arena on August 12th.