February 22, 2012 1:16 pm Avi Wisnia Performs Singer/songwriter Avi Wisnia performs Sink from his new album. Don’t miss his performance Friday, February 24th at the Philadelphia Museum of Art. For more info go to philamuseum.org/artafter5. US & World Videos 25:15 WATCH: Mayor Cherelle Parker announces all city workers will return to office full-time this summer 1:55 Penn students graduate amid extra security after an academic year full of unrest 11:16 Another campus protest in Philly: The Lineup 0:47 What advice did Keith Jones give to Arcadia University's graduating class? ‘Be bold' 1:11 Cabrini University graduates final class with Kylie Kelce addressing commencement