Tito Ortiz was arrested on suspicion of driving under the influence early Monday morning and Breaking Celebrity News has exclusive details on the raging Playboy Mansion bash he attended beforehand and just how hard he was partying.

While at the IMG party Sunday night, Ortiz, 38, flirted up a storm with all the models, an eyewitness told Breaking Celebrity News, and was drinking heavily.

"Tito was partying hard, like most people who go to a party at the Playboy Mansion," the source said.

"He was just having a good time. He flirted a lot with all the models and took a ton of photos with any girl who asked him. He was drinking a lot."

Click here to see photos of Ortiz just before he was arrested for his DUI.

The former UFC champion was arrested by the California Highway Patrol at about 3:50 a.m. on Monday morning after he lost control of his 2012 Porsche Panamera on the 405 freeway and ran into a median.

The CHP stated Ortiz had two passengers in his vehicle at the time but there were no injuries.

According to the Los Angeles County Sheriff's Department, Ortiz posted $15,000 bail and was released at 8:13 a.m.

As Breaking Celebrity News exclusively reported last November, shocking video footage of Ortiz's ex, Jenna Jameson, in her home allegedly drinking alcohol while her children were present and popping prescription pills was leaked online.