Sparklebrain

Future Trina was the main villain in the Grojband episode "Ahead of Our Tone". She was Trina in the future after being exposed to a modern (yet defective) piece of technology and thus, causing her to go mad with power.

After Corey and his friends went into the future just to see what newer music was like, the town turned out to be music-free. It was all because of Future Trina, who became the new ruler of the town and made it possible. She had purple and pink hair and a dark dress. She had several Nick servants and Mina Beff remained her henchwoman. At one point, after Grojband sang, they were able to destroy her crazy earpiece, went back into the present, and prevented Trina from becoming mad with power.