Alan Jackson, ESPN reporter Erin Andrews, HLN anchor Robin Meade and comedian Ron White have joined the lineup for Music Builds: CMT Disaster Relief Concert on May 12 in Nashville. Jackson will perform during the 90-minute special, while Andrews, Meade and White will serve as co-hosts. As previously reported, the roster will also include Hank Williams Jr., Alabama, Ronnie Dunn, Sara Evans, Lady Antebellum, Tim McGraw and Keith Urban. Filmed without a studio audience, the special will air live from Nashville at 9 p.m. ET/PT on CMT and will be simulcast on CMT.com. All money raised will benefit the American Red Cross disaster relief efforts for people affected by the recent devastating storms, floods and tornadoes.