Jared Leto

Jennifer Lopez and her boyfriend, Casper Smart, got dressed up in their black-tie finest to attend Saturday's UNESCO Charity Gala in Dusseldorf, Germany. They mingled at the charity event with other celebrities like Eva Herzigova and Jared Leto. Jennifer, clad in Lanvin, accepted an honour with her sister Lynda for their philanthropic work.

J Lo was able to fit the evening out on the town into her busy European touring schedule. She's due to perform in Rotterdam, the Netherlands, this evening, and then will return to Germany, to the town of Oberhausen, for a Halloween show. One date has been particularly significant to J Lo. She and Casper celebrated their one-year anniversary last Thursday, and he sweetly used their nicknames for each other in a loving tweet. Casper wrote, "Happy one year anniversary to the most gorgeous, kind, sweet, funny, beautiful lil' bear in the world." In return, Jennifer tweeted, "Thank you for sharing your beautiful smile with me everyday."

Today we're zoning in on all the fashion action from the 2011 MTV Europe Music Awards. Fab Fave Louise Roe played up her bohemian side in a 70s-inspired jumpsuit, Hayden Panettiere worked a printed monochrome Tibi frock and models Bar Refaeli and Irina Shayk both worked custom-designed denim numbers. Kudos to the host of the show Selena Gomez, who donned an embossed tulle Marchesa number for her red pink carpet arrival. Click through to scope the rest of the red carpet lineup.

The MTV Europe Music Awards were a beauty-full affair with host Selena Gomez working a variety of looks Katy Perry going retro and Lady Gaga — who skipped the red carpet — hitting the stage sporting her usual outlandish hair and makeup looks! The guys also came out to play with Justin Bieber supporting his girlfriend and showing of his new hairstyle. See all the action from the awards now!

With Paris Fashion Week in full swing, the celebrity sightings have heated up. You never know who to expect and, most importantly, what they'll be wearing. Our latest batch includes Rachel Zoe in a bright blue jumpsuit, Margherita Missoni showing off her signature zigzags and colour, and Gisele Bundchen getting sporty chic — after hitting the runway — at Givenchy's after party. There's more celebrity spotting where that came from, so check out the slideshow to see the rest!

The MTV Video Music Awards always bring out the best (and worst, in Kanye West's history) in people. And while they lack the couture glamour of the Oscars and the Golden Globes, they still pull out all the stops and the stars come a-flocking. They're taking place in the US on Sunday so we'll be bringing you all the action from the red carpet on Monday morning. But before then, let's refresh our memory about last year's ceremony and Lady Gaga's raw meat dress!

New York Fashion Week rolled on over the weekend with plenty of parties, shows and events. Jon Hamm kicked things off at the Rag & Bone presentation on Friday, and Kim Kardashian made an appearance with Sophia Bush at Charlotte Ronson on Saturday. Kim was then off to LA for the Grammys, but Sophia continued the front row fun with an appearance at Max Azria yesterday. Fergie and Molly Sims had prime seating to see the hot fringe boots at Diane von Furstenberg, and Kanye West hung out with music friends at Band of Outsiders. Zac Efron, meanwhile, looked dapper in his suit next to Joe Jonas at Calvin Klein's collection yesterday afternoon and Chris Hemsworth checked out G-Star with his wife Elsa Pataky. That's not all that happened in NYC this weekend — click into the gallery to see all the photos! Also, make sure to check out Fab and Bella for all the latest fashion and beauty news.

Leighton Meester was the guest of honour last night at a bash celebrating her latest cover of Nylon magazine co-hosted by Diesel in NYC. She was with her The Roommate co-star Minka Kelly in the afternoon for a Q&A at the SoHo Apple store before the bash, which brought out Kanye West, Jared Leto, and Leighton's Gossip Girl buddies Jessica Szohr and Nicole Fiscella. Minka and Leighton were together just last week in LA for the West Coast premiere of their thriller.

Celebrities were active on Twitter this week to share personal photos from their holiday breaks. Flo Rida dropped in on Ryan Seacrest's radio show, while Seth Green visited an amusement park with his wife. Jessica Alba hung out with Toms Shoes creator Blake Mycoskie, and Gwen Stefani partied backstage during a Yo Gabba Gabba concert in LA — click through to see all the shots!