Originally formed by guitarist Robben Ford as a less-commercial alternative to his label's pop-oriented plans for him, the Yellowjackets have thrived in the marketplace, mastering the elusive craft of making music that's both creative and accessible. Keyboardist Russell Ferrante is largely responsible for their wide sonic range, and fellow founding 'Jacket bassist Jimmy Haslip's stunning solo chops will make one forget the band has no guitarist these days. Along with longtime saxophonist Bob Mintzer and drummer Marcus Baylor, they celebrate the band's collective birthday -- appropriately before a live crowd -- on their latest CD/DVD release, Twenty Five.