BEST: Cobie Smulders looked red hot at the London premiere of The Avengers, wearing a sexy, sleeved Alexandra Vidal gown.

BEST: Scarlett Johansson was blooming in Prada at the London premiere of The Avengers, wearing a strapless embroidered peplum dress with red Christian Louboutin Pigalle pumps and Bulgari bling.

BEST: Mena Suvari was dressed to thrill at the American Reunion Madrid photo call, wearing a red and black lace Tadashi Shoji cocktail dress with black heels.

WORST: Leelee Sobieski took matronly to the max at The Five Year Engagement premiere at the Tribecca Film Festival, wearing a coat from the Olsen twin’s collection The Row over a Boy. by Band of Outsiders halter dress gown.

WORST: Back in the habit? Though it was refreshing to see Julia Roberts actually wearing a dress at the Los Angeles premiere of Jesus Henry Christ, her Victoria, by Victoria Beckham bibbed number looked like it belonged on a nun.

BEST: Jennifer Lopez showed off her marvelously taut tummy at American Idol, wearing a cutout Herve Leger by Max Azria bandage dress with nude strappy sandals.

BEST: Victoria’s Secret Angels do spring style to the max! Erin Heatherton, Lindsay Ellingson and Toni Garrn nailed this season’s look at their Love Is Heavenly fragrance launch, all wearing Alberta Ferretti dresses.

BEST: Olivia Wilde wore a wild Yigal Azrouel leopard print dress to the Tribeca Film Festival premiere of The Five Year Engagement. She paired the out-of-character dress with a Jimmy Choo clutch, gold Ippolita earrings and a Lucifer Cir Honestus skull ring

BEST: Katy Perry steamed up the 2012 ASCAP Pop Awards,wearing an awesomely embroidered Temperley London gown that showed off her assets to the max

BEST: Emily Blunt had us green with envy in her Jason Wu strapless party dress and green Alice + Olivia heels at the Tribeca Film Festival premiere of The Five Year Engagement. She finished off the look with a Valentino clutch and Lorraine Schwartz earrings.

WORST: Beyonce was impossible to miss on the streets of Manhattan, wearing a garish Versace shirt with shorts and loafers.

BEST: Catherine Zeta-Jones showed off her covetable curves in a skintight Michael Kors one-shoulder number in NYC. She paired the sexy dress with Christian Louboutin heels.

BEST: Kate Beckinsale showed off her superior stems in a J. Mendel slitty cocktail dress and nude Nicholas Kirkwood pumps at the Cancunphoto call for Total Recall.

BEST: Jessica Biel was sexily suited at the Cancun Total Recall photo shoot in a look from the Giambattista Valli collection.

WORST: We loved Dakota Fanning’s pink Lanvin party dress at the 2012 Tribeca Film Festival Vanity Fair Party, but what is that bizarre gold thing on her head?

BEST: Naomi Watts showed off her assets at the Tribeca Ball, wearing a strapless Stella McCartney dress with accessories from the same collection.

BEST: Rosie Huntington-Whiteley was white hot at the NYC premiere of Safe, wearing a sexy Andrew Gn number with blue heels and a Diane von Furstenberg clutch.

WORST: Forget your pants, Tallulah? Demi Moore’s daughter looked like she was having a rough day, hitting the Coachella Music Festival on Saturday barefoot and without pants.

WORST: Fergie had an unflattering fringe faux pas at the Coachella Music Festival, looking like she belonged in a west bar circa 1970.

WACKY: Rihanna was all about the heavy metal at the Coachella Music Festival, wearing insanely studded high-waisted jean shortswith an incredibly cropped tank.

WORST: Lindsay Lohan showed off her body in faux pas fashion at the Coachella Music Festival, wearing an eyelet jumper with matchy matchy platform boots, a Prada purse and bright yellow shades.

WORST: Vanessa Hudgens couldn’t decide if she wanted look like a stripper or a hippie at the Coachella Music Festival, so she mixed the two looks and added an orange floppy hat. Peace.

BEST: Kate Bosworth was hot to trot at the Coachella Music Festival in her Isabel Marant Dicker booties, adding short jean shorts and a chic western shirt.

WACKY: Nicki Minaj had a tutu catastrophe in London, wearing a putridly pink and plastic-y ensemble.

WACKY: Taylor Momsen is Pretty Reckless when it comes to her stripper-meets-grunge style.