Tekashi said he joined the Bloods to advance his music career.
Music competition series will feature the rappers searching for the next hip-hop sensation.
Other winners included Taylor Swift, who used her speech to call out the White House.
The rapper was scheduled to perform at Bankers Life Fieldhouse in Indianapolis.
The film arrives in theaters on September 13.
Lizzo, Keke Palmer, Julia Stiles, and Constance Wu also star in the film.
Regina Hall hosted the show, which saw Tyler Perry and Mary J. Blige receive special awards.
The rapper previously rejected a plea deal in the case.
Other performers include Cardi B, DJ Khaled and Migos.
The awards will be handed out on Sunday, June 23 in Los Angeles.