MOONLIT DINING: Taylor Lautner, taking advantage of Los Angeles' gorg weather and eating al fresco with "two pretty blond ladies" at Chulada Grill.
THREE'S COMPANY: Ashley Greene chatting with real-life Gossip Girl couple Ed Westwick and Jessica Szohr at the MAC Cosmetics/Richard Phillips Celebration for Make-Up Art Cosmetics Collection in NYC.
Gwyneth Paltrow and Cameron Diaz were hanging together into the late-night hours on Monday. Read on to find out what they were up to…
BLONDES HAVE MORE FUN: Paltrow and Diaz, drinking champagne and "being very sweet and unbelievably nice to everyone" at the Edison in downtown L.A. Gwynnie made her way home at about 1:15 a.m., while Cam and two gal-pals stayed for another half-hour or so.
HEROES WELCOME: Milo Ventimiglia, helping Pink is the New Blog's Trent Vanegas celebrate his birthday at Lucky Strike Lanes & Lounge at L.A. Live.
BOTTLE BLONDES: Paris Hilton chatting with Taryn Manning, at the Gavert Atelier salon in Beverly Hills.
BIG-CITY BOYS: Justin Long, eating dinner at Congee Village with a group of male friends in NYC's Chinatown.
CHILLIN' OUT: Shia LaBeouf, mingling with band members from Linkin Park, at the Riders for Health benefit in L.A.
SWEET SUITE: Michael Phelps and Andy Samberg, grabbing more than $10,000 worth of free goodies from the ESPY Style Studio gift lounge in downtown L.A.
FASHION FRENZY: Rachel Bilson, Kristen Bell, Lauren Conrad, Shenae Grimes and Leona Lewis, hitting the Vogue-hosted one-year anniversary celebration of the 3.1 Phillip Lim store in West Hollywood.
SUPPERTIME: Kiefer Sutherland, having dinner with a pal at Vermont restaurant in L.A.
OVER THE HILL: Sophia Bush, celebrating her 27th birthday at Nobu in West Hollywood.
GO FOR THE GOLD: Shawn Johnson, in St. Louis to help kick off Major League Baseball's All-Star Charity 5K & Fun Run benefiting Stand Up to Cancer, Susan G. Komen for the Cure and the Prostate Cancer Foundation.
—Reporting by Dahvi Shira and Aly Weisman
For a look at more of your fave stars out and about, head over to our daily Big Picture photo gallery.