President Obama will offer a special call-to-action message during the all-star fundraising event, Music Builds: The CMT Disaster Relief Concert, on Thursday night (May 12). Taylor Swift, Shania Twain and Carrie Underwood have also filmed messages asking viewers to take action. Other celebrities offering messages include Big & Rich's Big Kenny, actress Courtney Cox, TV host Ellen DeGeneres, actress Nicole Kidman and University of Alabama football coach Nick Saban.

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 those affected by the recent devastating storms, floods and tornadoes.

The 90-minute live special will highlight a number of regions affected by recent storm, tornado and flooding damage including Tuscaloosa and Birmingham, Ala.; Natchez and Vicksburg, Miss.; Vidalia, La.; Memphis, Dyersburg and Tiptonville, Tenn.; and Raleigh, N.C., to name a few.

As previously announced, the relief concert will feature performances by Hank Williams Jr., Trace Adkins, Alabama, Ronnie Dunn, Sara Evans, Alan Jackson, Lady Antebellum, Little Big Town, Tim McGraw and Keith Urban. In addition, the Blind Boys of Alabama and Gretchen Wilson have been added as performers. ESPN reporter Erin Andrews, HLN anchor Robin Meade and comedian Ron White will serve as co-hosts. HLN will re-air the telecast on Sunday (May 15) at 9 p.m. ET/PT.

CMT One Country, the network's pro-social initiative, encourages viewers to support those affected by the storms by visiting the American Red Cross website, calling 1-800-RED CROSS or texting the word REDCROSS to 90999 to make a $10 donation.