The Dave Matthews Band has announced its summer tour openers, and once again the quintet had made an effort to provide exposure to some worthy artists. The full list of openers includes Galactic (July 10-14), Robert Randolph & The Family Band (June 26-30), Daniel Lanois (July 29-Aug 1), Robert Earl Keen (July 24-27), N*E*R*D (July 16-23), O.A.R. (June 17-24), Guster (Aug 4-8) and Jason Mraz (Aug 31-Sep 8). DMB took home the Jammy Award for DVD of the Year last week at the Theater at Madison Square Garden.