Grammy-nominated rapper Lil Nas X was charged Monday with four felonies stemming from a Friday morning incident where police say he charged at officers while walking naked down a Los Angeles street.

Lil Nas X is facing four felony charges after allegedly assaulting police officers who confronted him for roaming the streets of L.A. while naked.

Rapper Lil Nas X pleaded not guilty Monday to four felonies alleging he charged police last week after “strolling naked down Ventura Boulevard in Studio City,” the Los Angeles County District Attorney’s Office announced.