*TMZ is reporting that rapper Yung Berg, best known for his guest appearance on Ray J’s single “Sexy Can I,” was violently beaten and robbed at a house in Los Angeles over the weekend.

According to law enforcement sources, Berg — real name Christian Ward — was at a house party at around 2 a.m. Monday morning when four suspects entered the home and brandished firearms.

According to the Web site, the suspects pistol-whipped two people inside the party — one of whom was Berg. Police sources say the suspects robbed a total of eight people and escaped with $10,000 in cash and jewelry.

A rep for Yung Berg said his client “has been in Vegas.” When asked if Yung was in L.A. over the weekend — the rep said he doesn’t know anything about the incident.