Lamar's Last Night Out As A Single Man!

Last night, Lamar Odom celebrated his last few nights of freedom before marrying Khloe Kardashian in a quickie wedding on Sunday.

In what was supposed to be a more "intimate" affair moved to STK at the last minute, Lamar, Joe Francis, Rob Kardashian and his Lakers teammates still managed to get a little crazy at Guys and Dolls after the dinner party.

A witness tells X17online, "Lamar and crew got to Guys and Dolls at 12:30. Tons and tons of his friends showed up. It was absolutely CRAZY in there. People were packed in like sardines!" Our source went on to say, "Laker Ron Artest gave a speech and made a toast to Lamar. Lamar was happy and so giddy like a little school girl he couldn't stop smiling. He danced with his friends at his table, drank champagne with everyone, and celebrated his bachelorhood until 2am."

Sounds like the Big O went out in style!