It was an action packed Sunday night in Belfast, as some of music’s hottest acts gathered together for the 2011 MTV European Music Awards.  RadarOnline.com has all the wardrobe winners and sinners from the red carpet, in an extra special fashion feature.

Selena Gomez was the hostess with the a la mode mostess, hitting the pink carpet in super sexy style.  The 19-year-old rocked a startlingly short and sexy Marchesa tulle top as a dress, adding elaborately embellished Casadei peep-toes, and wearing her long, dark mane in a loose, side ponytail.

PHOTOS: The Best, Worst & Wackiest Fashions Of The 2011 MTV EMA Awards

Christina Applegate hit the Late Show with David Letterman on Wednesday, promoting her latest flick, Going the Distance in truly fab maternity mode. The beautiful blonde actress rocked a polka dot Valentino frock with black patent peep-toe heels, flushed with that pregnancy glow.

PHOTOS: Red Foo, Michelle Trachtenberg, Kate Beckinsale, Minka Kelly, Angie Harmon, Courtney Love, Serena Williams, Katy Perry, Emma Watson, Kim Kardashian, Kourtney Kardashian, Kimora Lee Simmons, Jordana Brewster, Taylor Momsen, Gavin Rossdale, Parker Posey, Halle Berry, Kristin Cavallari, Kellis, Jimena Navarrete, Drew Barrymore, Christina Applegate, Amy Winehouse, Sharon Stone

Did Little Bo Love lose her sheep? Or just her sense of chic?  The wacky Hole front woman stepped out in Paris, looking totally wacky in clashing duds.  With a scarf wrapped around her head granny style, she contrasted the look with lace nylons and leopard print ballet flats.

PHOTOS: More Best And Worst

Serena Williams channeled Bam Bam, looking oh-so-Flinstones in a Dolce & Gabbana mini to celebrate her Hamptons magazine cover in New York, while Katy Perry, also in NYC, wore a kitty cat cardigan, which didn’t exactly have us purring.

PHOTOS: More Best And Worst

Kristin Cavallari showed off her new Farrah Fawcett 'do in Beverly Hills, courtesy of the Neil Lane salon.  The Hills hottie balanced out her uber-tiny cutoff shorts with an oversized black blouse for a sensational summer look.

What A-lister can’t get enough of her Chanel clogs?  Check out the gallery in Style and find out.

Summer is almost over, and stars are scurrying to wear this season’s scorching hot fashions before it is time to replace their embellished sandals with thigh-high boots! Reese Witherspoon was flawlessly fashioned for the sizzling Los Angeles afternoon on Tuesday, stepping out near her home in Brentwood wearing a gorgeously hued, watercolor mini with a skintight spaghetti-strapped tank, embellished sandals, oversized shades and toting a luxe brown bag. So chic, Reese!

PHOTOS: Stephanie Pratt, Hilary Duff, Lauren Conrad, Katy Perry, Maria Sharapova, Sharon Stone, Amy Smart, Bridget Marquardt, Amy Winehouse, Charisma Carpenter, Beyonce, Renee Zellweger, Red Foo, Fergie, Meagan Good, Adrian Grenier, Sarah Jessica Parker, Christina Applegate, January Jones And Reese Witherspoon In The Best And Worst

Meanwhile in St. Tropez, Beyonce made a splash -- in totally clashing duds. It seemed that the bombshell couldn’t decide what pattern she wanted to wear, so she decided to rock them all!

Jersey Shore may be finished filming their second season, but the party isn’t over for the cast as they continue to live off their fame and party all over the country.

Nicole “Snooki” Polizzi and DJ Pauly D made their way to Scottsdale, Arizona during the weekend for a raging pool party with hip hop band LMFAO and RadarOnline.com has all the exclusive details and photos.

PHOTOS: See Snooki & Pauly D Getting Cozy In Arizona; LMFAO Sings In The Pool

“Snooki and Pauly D hung out in the party’s VIP area,” an eyewitness tells RadarOnline.com. “They were posing for pictures in classic Jersey Shore style.”

LMFAO performed their hit, I’m In Miami, B**ch for all the party-goers and one tells RadarOnline.com, “At one point band-member Red Foo ended up in singing in the pool, microphone and all!”

PHOTOS: Snooki And Pauly D Partying At Skybar

The Jersey Shore cast took their fist-pumping antics to Miami this spring where they got in plenty of “gym, tan and laundry” because as RadarOnline.com previously reported, a lot of the nightclubs banned them for fear that the cast would ruin their reputation.