BEST: Halle Berry looked biker beautiful at the Alicia Keys concert in Los Angeles, wearing a grey embellished mini with a leather jacket and fringe boots.

WORST: Lauren Conrad’s tights were a distracting addition to her chic black threads, which included a black romper, blazer, Christian Louboutin pumps and a Jumbo Chanel Flap Bag.

BEST: Ashlee Simpson-Wentz hit Hollywood hotspot Trousdale wearing an uber mini, flirty, floral dress over black tights, with a blazer and Mary Jane heels.

WORST: Gary Busey took a stroll in Santa Monica, proudly sporting a llama sweatshirt and moccasin boots.

WORST: Alyson Hannigan’s purple and grey sweater looked awkward under blazer, and paired with riding boots, the actress looked she was ready to hop on a horse!

WORST: Little Dutch Girl? Debra Messing paired a jumper with clogs in Los Angeles.

WORST: Holly Madison was too tan and too pink at a promotional event in Las Vegas.

BEST: Whitney Port looked smashing in Soho, rocking an exaggerated shoulder blazer over a colorful mini.

WORST: Cheryl Cole looked like she spilled bleach all over herself, while promoting her new album in Paris.

BEST: Selena Gomez looked fun and flirty, pairing a black, sleeveless blouse with a glitter skirt and towering, black heels.

BEST: Jessica Alba ran errands in Los Angeles, rocking metallic sandals with distressed denim, and wearing a pink bra under her black shirt.

light-colored shirt with black jeans, sandals and toting around an Alexander Wang Rocco Duffle.

BEST: Kim flaunted her Kardashian curves in an olive green, one-shouldered mini, which featured ruffle detailing.

WORST: Michelle Trachtenberg’s pale aqua dress was gorgeous, but black nylons and green booties?? The Gossip Girl helped launch the new Crest 3D White Collection in NYC.

BEST: Raquel Welch has still got it! The seasoned star looked gorgeous rocking a metallic blazer over black threads at her book signing in Los Angeles.

BEST: Rachel Bilson looked sensationally springy, rocking a white, t-shirt under a purple sweater, J Brand Houlihan skinny cargo pants in vintage olive and her coveted Spring 2010 Chanel bag.

WORST: Bai Ling hit the red carpet in Los Angeles, wearing an, um, interesting jumpsuit.

WORST: Snooki and J-Woww hit the streets of Miami Beach, rocking their authentic Jersey Shore duds.

WORST: Deryck Whibley channeled Elvis, while dining at Boa Steakhouse in Hollywood.

BEST: Daisy Fuentes was sleekly styled at the St. Jude Children’s Hospital’s Estrella Por La Vida gala in Los Angeles, wearing a black dress with totally chic accessories.

BEST: Keke Palmer managed to refine her shredded jeans by adding a grey blazer and patent boots, to the inaugural St. Jude Children’s Hospital’s Estrella Por La Vida gala in Los Angeles.

WORST: Matthew Bomer wore too many shades of black and brown with a plaid shirt to an evening with White Collar at the Paley Center for Media in Beverly Hills.