"Wild Thing" rapper Tone Loc was in a Los Angeles courtroom on Thursday, where the 45-year-old MC (born Anthony Smith) pleaded not guilty to felony possession of an assault weapon and domestic violence charges.

Loc was arrested last month for suspicion of felony domestic violence following an alleged altercation with the mother of one of his children.

According to TMZ, police found an unregistered military-grade assault rifle, a semi-automatic Colt AR-15 Sporter, during their investigation into the incident on June 18. He is slated to return to court in the case on July 28.

Last December, Loc was arrested for DUI, but his manager told TMZ that his client does not drink and it was a seizure that caused him to drive erratically.

Best known for his gravelly voice and laid-back attitude, Loc had two best-selling singles from his 1989 debut, Loc-ed After Dark, which was followed by the less-successful 1991 disc Cool Hand Loc. After his music career cooled off, the rapper used his unmistakable voice to launch a second career as a voice-over actor and sometime movie actor, appearing in films such as "The Adventures of Ford Fairlane" and "Posse." He's also lent his voice to the movies "FernGully: The Last Rainforest," "A Cool Like That Christmas" and "Titan A.E.," as well as the TV shows "King of the Hill" and "C-Bear and Jamal."