Held at the Barker Hangar in Santa Monica, Calif., the live telecast is expected to feature unforgettable performances by Nicki Minaj, Rita Ora and John Legend. And while many of the awards remain top-secret until showtime, we’re happy to share Melissa McCarthy and Victoria Beckham will receive special honors during the star-studded telecast. Before the show kicks off, we have to talk about fashion! Your favorite celebrities…