James Gandolfini walking his dog in Tribeca yesterday ... Bradley Cooper running errands in SoHo ... Ringo Starr walking uptown ... Dr. Mehmet Oz leaving Rockefeller Plaza ... George Clooney and Elisabetta Canalis dressed up and headed out for the evening ... Kiefer Sutherland posing for pictures outside the Late Show with David Letterman ... Matthew Broderick walking son James to school ... Ke$ha shopping at Sol de Ibiza on Greene Street in SoHo .. Steven Van Zandt walking in Midtown yesterday ... and Catherine Zeta-Jones leaving her apartment building.