The singer and reality-TV personality did not appear in court, instead entering his plea through his attorney.
TMZ previously reported that the singer was at the hotel's Sidebar when he got into a fight, was ousted from the bar, and the cops were called. The sexual-battery allegation changed from him grabbing a woman's backside to him grabbing her breast, the site said, citing witnesses.
The Beverly Hills Police Department is still investigating the incident.
If convicted of all counts, he could face a maximum sentence of four years in county jail, the D.A. said.
Ray J is the brother of R&B songstress