Spotted!

Nelly performed live on stage on July 6 for thousands of partygoers, surprising fans when he played his iconic hit summer single, "Country Grammar" off of his first album at Jet Nightclub in Las Vegas.

Rene Zellweger hosted an impromptu get-together with friends at the Blue Parrot in East Hampton. The rumored silent investor hosted an evening of dinner and drinks, where she and guests were later seen dancing atop the banquettes as music blasted through the East End hang-out. Also that evening, Bravo TV's Real Housewives of New York City's Countess Luann de Lesseps was spotted indulging in the Tex Mex fare as well.

Lost stars and love birds Evangeline Lilly and Dominic Monaghan in Las Vegas on Friday where they treated Dominic's parents, Maureen and Austin, to an exciting evening in Sin City. Evangeline and Dominic took his parents to see Cirque du Soleil's "The Beatles Love" followed by cocktails at The Beatles Revolution Lounge at the Mirage. While at The Beatles Revolution Lounge, Evangeline and Dominic requested to be seated at one of the ultra-lounge's one-of-a-kind interactive tables where they created tabletop artwork which was then projected onto the columns scattered around the venue.

Beyonce was spotted shopping at the Ilori Rodeo Drive boutique, and the sunglasses loving diva spent over a whopping $6,000 on some new shades, including the Ilori exclusive, limited edition Lavin "Strassee."

Shia La Beouf having a filet mignon and red wine while at  Locanda Portofino on Santa Monica's Montana Avenue while at dinner with Oliver Stone and Josh Brolin and attending the Riders for Health event at Suru.

Milo Ventimiglia high-fiving friends at Lucky Strike Lanes & Lounge L.A. Live.

Nip/Tuck star John Hensley, CSI's Anthony Zuiker and W star Ioan Gruffud at the Celeritas art auction in LA benefiting Riders For Health.

Laura Prepon and her boyfriend Scott Michael Foster dancing up a storm and drinking bottles of Grey Goose at Blush Boutique Nightclub inside Wynn Las Vegas.

Steve Carrell eating at Tao NYC three days in a row and asking the GM if they will deliver dinner to his room at the Four Seasons. He ate the 24.07 prixe-fix lunch.

MTV's The Hills stars Kristin Cavallari and Stephanie Pratt were spotted at Compartes Chocolatier in Brentwood on Friday afternoon, sharing a plate of chocolates and gelato on the patio, with a big camera crew -- and paparazzi -- in tow!

Jodie Foster spotted at the Bridgehampton Carnival on Friday night looking very casual in a T-shirt and skirt and her specs.

Lisa Rinna and Harry Hamlin at the opening night performance of Ringling Bros. and Barnum & Bailey's" ZING ZANG ZOOM," dedicated to Autism Speaks and the millions of families struggling with autism.

Haley Joel Osment and his buddies at the Wilco show in Coney Island, blending in with the crowd, sporting a baseball hat and grey t-shirt.

Kevin Federline played hide-and-seek with his two kids, Jayden James and Sean Preston (sporting 77kids' Khaki Cargo Shorts) while on vacation in Paris.

90210 star AnnaLynne McCord stopped by the OP Campaign Launch Party at Mel's Diner on July 7 looking radiant in Napoleon Perdis cosmetics.

Adult film star Jenna Jameson spent the day soaking up some sun at Bare Pool Lounge, after a long weekend out and about in Sin City for the UFC 100.