WORST: Robert Downey Jr. hit the streets of Milan, wearing clunky, brown shoes and tinted shades.

BEST: Selena Gomez looked lovely in London, belting a white blouse over black pants.

BEST: Busy Phillips got dressed up for the 31st Annual College Television Awards in a Max Azria Resort 2010 gown, which featured a rosette shoulder detail, which cascading down to the floor.

BEST: Gwen Stefani kept her sheer look classy, by wearing tights and solid undergarments under her uber short ensemble. The blonde babe was attending the Conde Nast Traveler Hot List Party at Haze Nightclub at Aria Resort and Casino.

WORST: Kate Beckinsale looked a bitt “Vegas showgirl” in a Zac Posen Spring 2010 halter dress at the Conde Nast Traveler Hot List Party at Haze Nightclub at Aria Resort and Casino. She paired the out of character mini with nude and black Christian Louboutin heels.

WORST: Was Corey Feldman auditioning for a new Western movie? Nope. The actor was heading into Millions of Milkshakes in West Hollywood, dressed in herding threads.

BEST: Kate Bosworth enjoyed an outdoor lunch at Joan’s On Third in Los Angeles, looking fab in a floral skort, cream sweater and laced booties.

BEST: Laura Prepon proved that jeans and a white t-shirt can go a long way! The gorgeous actress attended the opening of the first combined tattoo studio/nightclub in Las Vegas, looking simply chic.

BEST: Pam Anderson launched her Vanilla Vegan Shake at Millions of Milkshakes in Wes Hollywood, looking simply stunning in a white frock and brown, stacked sandals.

WORST: Jenna Jameson enjoyed a romantic dinner at Koi with her Tito, matching her neon platforms to the orchid in her hair.

WORST: Though we appreciate Taylor Momsen’s edgy style, the Gossip Girl went over the top with her black eyes at the Vans Warped Tour 2010 Press Conference and Kick-Off Party in Los Angeles.

BEST: Gretchen Mol attended the premiere of Teenage Paparazzo at the Gen Art Film Festival, looking glam and sophisticated, wearing a belted, ruffled blazer over skinny jeans.

BEST: Alexis Bledel attended the premiere of Teenage Paparazzo at the Gen Art Film Festival, shimmering a belted dress.

WORST: Lady Gaga went for a monochromatic look in Australia, wearing a top, which was missing a side!

WORST: Pharrell was spotted at JFK airport in NYC (how could he missed in those blindingly red kicks?) wearing patriotic colors.

BEST: Karolina Kurkova showed off her supermodel style in NYC, wearing a clever fedora, Chanel flap bag, and white, ankle wrap ballet flats with preppy threads.

WORST: Brigitte Nielsen left little to the imagination in Berlin, stepping onto the dance floor in embellished performance gear.

BEST: Khloe Kardashian rocked a flirty floral romper with towering stilettos, while passing out flyer for Dash in Miami Beach.