Irish rock star Bono, lead singer of U2, makes a point to a crowd on Chicago's South Side where he talked about the AIDS (news - web sites) epidemic in Africa and forgiving third-world debt, Wednesday, Dec. 4, 2002. The stop was one of several of his seven-day bus tour through seven Midwestern states to raise awareness of the epidemic in Africa. Bono is joined by actress Ashely Judd, left, and comedian Chris Rock (news), right. (AP Photo/Charles Bennett)
I don't think that is Chris Rock. Chris Tucker, perhaps?
This pic and article has been on Yahoo since the 4th. I have been waiting for a correction, but no one seems to have noticed.
FOLLOW UP: I checked the Chicago Sun Times site and found an article saying that Chris Tucker was the featured black celebrity at this event.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.