Samsen Marquez, 18, was outside for some fresh air and decided to start playing his trombone, when all of a sudden someone joined him from across the street. The pair then began a jam session that entertained the entire block. Samsen's partner? None other than trumpet player Brian Newman, who is Lady Gaga’s bandleader for her Las Vegas residency. The two live across the street from each other in Brooklyn but had never met. InsideEdition.com’s Leigh Scheps reunited them.