BR5-49 and the Warren Brothers have been added to the George Strait Country Music Festival, which kicks off March 24 in Tampa, Fla. They will perform on "The Jack Daniel's Lynchburg Live Stage" in the Straitland midway. ... Opening week SoundScan numbers for LeAnn Rimes' latest, I Need You, were her lowest to date, Billboard reports. Still, sales of more than 82,000 units were enough to land the disc at the top of this week's country album chart and at No. 10 on The Billboard 200.