Nicki Minaj for Steven Universe

Nicki Minaj will unleash her superpowers in an upcoming episode of Cartoon Network’s Steven Universe.

For the episode, the rapper voices Sugilite, the mighty and powerful fusion of Garnet and Amethyst, two of the show’s magically powered “gems” who help protect the world.

TV Guide offered a sneak peek from the episode, which was screened at Comic-Con in San Diego last week.

In addition to Nicki, the episode also features Estelle, who voices the warrior Garnet.

The full episode, entitled “Coach Steven,” premieres August 21 at 6:30 p.m. on Cartoon Network.