What a glitzy weekend! While Beyonce hit the Glastonbury stage in hot pants, Kelly Rowland and peeps partied at the BET Awards. Plus, Rosie Huntington-Whiteley makes jaws drop in Berlin and Kate Middleton gets militant in McQueen. Check out all the weekend's best dressed!

The stars shone last night as stunning Dita Von Teese and Diane Kruger partied in Paris while Selena Gomez and Katie Cassidy charmed in NYC. Plus, Fergie cuddles with Marc. Check out all the glam goings-on!

The stars are hitting the streets en masse which means summer is officially here! From New York to Paris, see the celebs party it up in sassy street style!

It was all about Rachel Zoe on Tuesday night as celebs including Jaime King came out for a dinner in her honor. Plus, the Hiltons party with Charlotte Ronson while Olivia Palermo and Kate Winslet step out in looks by Victoria Beckham. See the style stars of the night!

Christina Hendricks channels Joan Harris at the Critics' Choice Awards while Jayma Mays and Cat Deeley show off their summer style. Meanwhile, Cameron Diaz and Justin Timberlake continue to promote their latest film—check out the stylish fêtes!

Kim struts her stuff in Hollywood while Selena and Bieber hit up Toronto's MuchMusic Awards. Meanwhile, Kate Bosworth is pretty in pink and Lady Gaga feeds our cravings for daring fashion. See the weekend's most stylish stars!

Hollywood jump-started the weekend with pizazz as Cameron Diaz sparkled across the globe and Elle Fanning got dolled up for a star-studded bash. See who else stepped out in style!

It was all about giving back last night, as celebrities shared their wealth at charity events—and looked fabulous while doing so, of course. From Gwyneth Paltrow to Alicia Keys, see who gave back in style!

New York was the place to be last night as fashion types and film stars gathered for amfAR's Inspiration Gala at MoMa. Look for Heidi Klum, Olivia Palermo, Jennifer Hudson and more, plus catch up with Cameron Diaz as she takes the Kremlin by storm!

While stylish celebrity friends feted Stella McCartney in NYC, Kim Kardashian showed her signature style in Hollywood. Plus, don't miss glam looks from Blake Lively and JLo at last night's chic soirees!

While Jennifer Lopez and Nicole Scherzinger lit up the stage at the UK Summertime Ball, Olivia Wilde and Jennifer Garner held down the scene in LA and Lily Allen tied the knot in England. See the weekend's well-heeled festivities!

Talk about fabulous! Last night, Gisele Bundchen and Kate Middleton got ultra-glam in glittering dresses, while Hailee Steinfeld and Malin Akerman prepped out! Check out all the stylish soirees!

It's all style, all the time in Hollywood! Country's finest partied it up at the CMT awards, Charlize Theron and Amber Heard put their best foot forward for Dior and Leighton Meester looked perfectly pretty for Vera Wang. But that's not all. Check out all of last night's fab parties!

Kim Kardashian is making the rounds in London, launching a fragrance at Debenhams and joining the likes of Kristen Stewart and Keri Hilson at the 'Glamour' Women of the Year Awards. See who else rocked the night!

Models, muses, designers and Kanye gathered for the CFDA Awards in New York last night. As expected, the fashion was fantastic and Lady Gaga was, well, Gaga. Meanwhile Ryan Reynolds and Olivia Wilde made appearances in Hollywood. Check out all the star studded fetes!