T-Pain, The rapper who used to officially endorse Antares’ auto-tune effect, ended his deal with the company in June and formed a new company with Izotope, to promote his own line of “T-Pain” audio effects.

Now, T-Pain filed a lawsuit in United States District Court of Northern District of California, claiming that Antares continues to use his image and likeness in advertisements, packaging and marketing materials for Antares’ rival products.

T-Pain, born Faheem Najm, claims without his permission, Antares has also licensed his name and image to third parties to endorse their own products.

In addition to at least $1 million in damages, T-Pain is seeking an injunction prohibiting Antares from using his name image, likeness, photograph, voice or anything else connecting him to Antares’ competing “Autotune” products.