Rapper Lil Nas X has been charged with four felonies after allegedly charging at police officers who confronted him for walking naked along a Los Angeles street last week.

The 26-year-old musician, whose real name is Montero Lamar Hill, pleaded not guilty Monday to three counts of battery on a police officer causing injury and one count of resisting an executive officer, the district attorney’s office said.

The charges are significantly more serious than initial reports suggesting a misdemeanor. If convicted, he could face more than 10 years in prison.

Police said they found Hill walking naked on Ventura Boulevard in Studio City around 6 a.m. Friday. When approached, he allegedly rushed at officers before being subdued and arrested.

Authorities suspected a possible overdose and took him to a hospital before transferring him to jail, where he was held for three days. He was later released on $75,000 bail under the condition that he attend drug treatment.

A court complaint states that he “unlawfully used force and violence and inflicted an injury” on each of three officers he should have known were peace officers performing their duty.

Defense attorney Christy O’Connor told the court that Hill’s actions were out of character. “Assuming the allegations are true, this is an absolute aberration in this person’s life,” she said, noting his “remarkable” achievements, including two Grammy wins.

Lil Nas X is scheduled to return to court on September 15 for a pre-trial hearing.

The Atlanta-born artist rose to fame with his 2018 breakout hit Old Town Road, which spent a record 19 weeks at No. 1 on the Billboard Hot 100. His 2021 debut album Montero reached No. 2 on the Billboard chart and earned a Grammy nomination for album of the year.