Congrats to Bon Jovi. Tommy and Gina must be so proud. That’s because the band’s “Livin’ on a Prayer” video is the latest rock entry in YouTube’s 1 Billion Plays club. The Wayne Isham-directed performance clip was initially filmed in 1986 at the Grand Olympic Auditorium in Los Angeles, featuring a mix of rehearsal and live concert footage. In addition to the traditional stage theatrics, Jon Bon Jovi is also seen in the clip trying out a stage harness so that he’s allowed to soar over the crowd with with wires attached. The video surpassed the 1 billion views mark on Saturday (Jan. 28), with th…