Paris Hilton's ex-boyfriend Doug Reinhardt celebrated his 26th birthday in style on Friday with an intimate bash at his gorgeous multi-million dollar mansion in the Hollywood Hills thrown by his mother and friends. RadarOnline.com obtained the exclusive photos and details of the star-studded evening.

“It was the best party he has ever had,” said a friend of the Hollywood playboy.

EXCLUSIVE PHOTOS: Doug Reinhardt’s Birthday Bash

Reinhardt, who is known for dating a slew of Hollywood’s hottest ladies, had a long celebrity guest list including Brody Jenner, Stacey Keibler, Jasmine Waltz, new “lady friend” Cassie Scerbo, Ryan Braun and Randy Wolf (both Milwaukee Brewer pitchers).

The home was transformed into a sought after St.Tropez night club: the popular UK DJ’s The EC Twins, who have blown up the LA club party scene spun, all night long and there was a photo booth, psychic reader, palm reader, and a Yogen Fruz frozen smoothie bar.