VIDEO : Justin Bieber Tributes Pulse Nightclub Victims and Christina Grimmie

Pop star Justin Bieber promised fans that he wouldn't cancel his concert in Orlando after the horrific tragedies occurred at Pulse Nightclub, and Bieber kept his word. Last night, the heartthrob performed in Florida at Amway Center in Florida, but he made sure to take a moment to honor those whose lost their lives in the devastating events that occurred in Orlando recently.