PHOTOS! Ortiz’s girfriend, Marky Mark, Diddy, LMFAO, Tyson, Heidi and a ‘Harry Potter’ star signs a thigh

Why is this man smiling? Victor Ortiz just lost to Floyd Mayweather at MGM, then he was immediately all smiles on the canvas and then at Studio 54. Why? (Courtesy photos by Ethan Miller/Getty.)

Ohhhh, now I get it. Look at her. It’s his girlfriend, Alexia Garland. That’s a smile-maker.

 

Mark Wahlberg and boxer Micky Ward partied in a Palms Place penthouse with hundreds of VIPs, including Diddy, Brandy, and George and Phil Maloof. (Courtesy photos by Denise Truscello/Wire Image.)

I kept following Diddy around, accidentally, at the Palms, and I’m pretty sure his entourage at N9NE steakhouse and Rain nightclub was 90 — that’s 90 people. When was the last time you ate and partied with 90 friends?

I was at this Palms Place penthouse VIP blowout, but I never saw Brandy there. I must have been looking somewhere else. Oh right, Misty …

Rupert Grint took his Ron-in-“Harry Potter” self to Sugar Factory at Paris on Sunday and was greeted with quite the autograph turnout. This first picture is a little bit "helloooo." (Courtesy photos by Denise Truscello/WireImage.)

Understated Photo of the Weekend: Grint partied at Chateau nightclub Saturday night. Reminds me of that "Harry Potter" marathon in "Yes Man." (Courtesy photo by David Becker/WireImage.)

 

Star Jones and her man Herb Wilson checked out “Zumanity” Sunday. He’s executive chef at Sushisamba. (Courtesy photo by Nikki Halsay/Cashman Photo.)

 

Method Man rapped at LAX. (Courtesy photo by Scott Berry.)

The night before, Redman performed at LAX. (Courtesy photo by Scott Berry.)

 

Jamie Foxx ate coconut shrimp and pad thai (oh the details we know), then partied at club Tao, performing for two hours with DJ Vice, spraying champagne and sending drinks to women. “Some of you are going to miss your flight tomorrow. That will be because of me,” he cracked. His entourage included UFC’s Rashad Evans and Octagon Girl Rachelle Leah. (Courtesy photo by Al Powers/Powers Imagery.)

LMFAO chowed at Tao Asian Friday then performed at club Tao. (Courtesy photo by Al Powers/Powers Imagery.)

Lynyrd Skynyrd’s Johnny Van Zant, Gary Rossington and Rickey Medlocke toured the new Lynyrd Skynyrd BBQ & Beer at Excalibur. (Courtesy photo by Denise Truscello/WireImage/denisetruscello.net.)

 

Actor Rhys Coiro, Billy from “Entourage” and costar of “Straw Dogs,” partied at Lavo with wife Kat after MGM’s boxing match. (Courtesy photo by Al Powers/Powers Imagery.)

 

Kaskade headlined at Marquee again, with Tito Ortiz in the crowd. (Courtesy photo by Brenton Ho/Powers Imagery.)

Busta Rhymes hiked the mic at club Gallery on Saturday and stopped by Sugar Factory. (Courtesy photos by David Becker/WireImage.)

 

Marky Mark, Diddy and Jamie Foxx were all in a bunch for the fight, which ended awesomely awkwardly. (Courtesy photo by Erik Kabik.)

 

Christina Milian ate with Julissa Bermudez and other friends at Lavo then went to club Tao and Tao Beach for a bachelor party. Those dresses look real nice. (Courtesy photo by Al Powers/Powers Imagery.)

For Mexican Independence Day weekend, Pedro Fernández performed at the Cosmopolitan. (Courtesy photo by Erik Kabik.)

 

Bridget Marquardt partied at Sugar Factory and Gallery nightclub with boyfriend Nicholas Carpenter, the director. (Courtesy photo by Denise Truscello/WireImage.)

 

Miss Universe 2010 Ximena Navarrete took family members to eat at Social House then to party at club Pure Friday. Miss Nevada Sarah Chapman was also Pure-ing. (Courtesy photo by Nikki Villoria.)

 

Mike Tyson did up Chateau on Friday. (Courtesy photo by Scott Harrison/RETNA.)

 

Heidi Montag checked out the new 35 Steaks + Martinis at Hard Rock Hotel. (Courtesy hoto by Cassi Thomas/Retna.)

The OMGodfather, I mean Kris Jenner ate at Stack Friday, and she, Noelle and Cynthia Bussey visited the Kardashian Khaos store construction at Mirage. (Courtesy photo by Denise Truscello/WireImage.)

Not pictured: Christina Aguilera ate with boyfriend Matthew Rutler and friends at Tao Asian Bistro then took to a skybox in club Tao. … Marlon Wayans and Kevin Hart partied at Marquee Dayclub. … Spotted at MGM Saturday for the fight: Jamie Foxx, Denzel Washington, 50 Cent, Paul Rodriquez, Kevin Hart, Anna Pacquin, Star Jones, Steven Moyer, Gabriel Iglesias, Rhys Coiro, Mike Tyson, Magic Johnson, Oscar de la Hoya, Kevin Garnett, Sugar Ray Leonard, Leon Spinks, Thomas Hearns, Chuck Zito, Winky Wright, Zab Judah, Paulie Malignaggi, Caron Butler and Devon Alexander.