During his Staples Center concert last night in L.A., the Biebs once again ditched his shirt to bare his body onstage during the show. The "Boyfriend" singer also made one lucky female fan's night by bringing her onstage and serenading her. Clumsy Bieber! Justin took a tumble moments before a photoshoot this weekend, AND has the Insta-video to prove it! The Biebs teased fans with this tweet:If u didn't hear I fell down the stairs this morning. Check my Instagram for details. It was epic :) lol? Justin Bieber (@justinbieber) June 23, 2013 Reports have claimed that the young pop singer's relationship with his manager was becoming strained because of Biebs' recent antics, but E! News confirms with a source close to the pair that "all is good with them." To further prove that sentiment, Bieber and Braun illustrated their deep bond through the art of dance (kinda).