VIDEO : Demi Lovato and Nick Jonas Pay Tribute to the Victims of the Orlando Shooting

Nick Jonas, Demi Lovato and Andra Day paid tribute to the victims of the tragic Pulse nightclub shooting Saturday during their Orlando concert. Nick Jonas and Demi Lovato paid tribute to the victims of the tragic Orlando nightclub shooting Saturday during their concert at the Florida city's Amway Center, with the Future Now tour mates joined onstage by Andra Day for a moving rendition of that singer's "Rise Up.