Dr. Barry Wasserman, a Wills Eye Pediatrics physician byday, and a singer/guitarist in the rock-and-roll band,Rightback, by night, performed at the 5th AnnualRockin' Docs for Diabetes Cure benefit concert atthe World Cafe Live on Saturday night. Dr. Wasserman,above, is seen singing the Rolling Stones' classic "YouCan't Always Get What You Want." photo: ©roger barone/PHOTOS FROM PHILLY