When you have a nickname like "Guitar," it's a sure bet you know how to handle one. Beverly Watkins has been doing just that since hitting the stage with Piano Red in the '50s. Her swagger and grooves have put her in the company of James Brown, B.B. King and Ray Charles in their heyday; she's torn up the stage at blues clubs in the years since. Tonight, she'll share duties with an impressive revue of bluesmen: original JBs guitarist Robert Lee Coleman, Piano Red's nephew Albert White, gospel and blues artist Shelton Powe, drummer Adie Dean and jazz musician Nashid Abdul Khaaliq. —Ashley Melzer