Rolling Stones announce Gary Clark Jr. as opening act for their U.S. tour, starting April 28.

The Rolling Stones have announced Gary Clark Jr. as the opening act for their upcoming U.S. tour, starting at NRG Stadium in Houston, Texas on April 28. Both artists have recently released new albums, with the Stones supporting their latest "Hackney Diamonds" and Clark promoting his "JPEG RAW" record. The tour will continue through May, June, and July with performances at U.S. stadiums, following the New Orleans Jazz Fest in May.