"We were all there... He hires a band and he's got all these musicians and Justin Bieber, Ed Sheeran, Usher and myself, so the band, I think, lasted about three songs before we just took that thing over and Tom (Hanks) actually jumped up and sang as well." Carly Rae Jepsen reveals her manager Scooter Braun's wedding reception was an all-star karaoke session.