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Hayden Panettiere is channeling her new Nashville rock star character in a gold Marchesa gown with navy overlay.
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Connie Britton, we love you and we can't wait to watch Nashville, but your hair is frightening and the dress is too glitzy. #BringbackMrsCoach
3 of 51 Frazer Harrison/Getty Images
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2 Broke Girls' Kat Dennings is radiant in a strapless J. Mendel red dress with gold Louboutins paired with a red lip.
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Modern Family's Jesse Tyler Ferguson is always dapper in a black suit and TietheKnot.org custom bow tie.
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The Big Bang Theory's Mayim Bialik looks frumpy in a deep red billowy dress and messy hair.
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New mom Giuliana Rancic has no qualms about showing off some leg in a black Ramona Caveza gown with a high slit and an asymmetrical strapless top.
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Ariel Winter of Modern Family is on trend with a gown that's a bit shorter in the front and longer in the back and a low side bun.
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Leslie Mann looks like she sewed her grandmother's pearls on a top and paired it with a burnt-orange skirt.
9 of 51 Jeff Vespa/WireImage
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Top Chef Padma Lakshmi is stunning in an orange Monique Llulhier gown that’s tight on top and flairs with a tulle skirt.
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Phoebe Price's pale skin blends with her light dress that has way too much going on. (P.S. Who is she?)
11 of 51 Jason Merritt/WireImage
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Newly single Amy Poehler looks sexy in a tight sequined gown with a deep V-neck.
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Mad Men's January Jones looks like an extra from Black Swan in a jet-black gown, heavy eyeliner and hair slicked back into a bun.
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Mad Men's Kiernan Shipka is as adorable as ever in a tea-length white satin dress.
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Heidi Klum is channeling her inner Grecian goddess in a teal flowing gown with a bit of sex appeal highlighted by a high slit.
15 of 51 Mario Anzuoni/Landov
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Jimmy Fallon is always classically chic in a classic black tuxedo and bowtie.
16 of 51 Jeff Kravitz/FilmMagic
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Girls wunderkind Lena Dunham looks way beyond her years — in a bad way — in an ill-fitting navy blue short-sleeved dress that cuts her off at the waist and lacks any shape.
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Once Upon a Time's Ginnifer Goodwin's nude-colored gown looks like it's covered with red Silly String, and she went way too heavy on the eyeliner.
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Modern Family's Sarah Hyland co-designed her pretty silver gown with applique cap sleeves.
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Veep's Anna Chlumsky has grown up since she was in My Girl as a kid and looks stunning in an antique-looking, V-neck lace gown.
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Mad Men's Jessica Paré looks great in white, one-shouldered gown with a skinny black belt and bright red lip.
21 of 51 Jeff Kravitz/FilmMagic
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Julianne Hough looks like an old Hollywood mermaid in turquoise sparkles and slicked-back flapper hair.
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Julianna Margulies, star of The Good Wife, stole somebody's grandmother's couch to make her strapless gown. It would look better as furniture.
23 of 51 Jeff Kravitz/FilmMagic
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Christina Hendricks' Christian Siriano gown is ill-fitting, blends into her pale skin color and shows off way too much cleavage. We like her Mad Men wardrobe better.
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The Good Wife's Archie Panjabi is wearing a teal satin dress is way too '80s prom. All she needs is a corsage.
25 of 51 Jeff Kravitz/FilmMagic
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Suburgatory's Jane Levy chose the perfect bright color to accent her pulled back red hair. The shape is youthful and tailored well for her figure.
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Nicole Kidman looks like she's ready for battle in her teal armor.
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We wish that Claire Danes had just shown off her baby bump, because her billowing bright yellow dress is really unflattering.
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New Girl's Zooey Deschanel is repeating her '80s style with a pale-blue Reem Acra tulle gown and an Bumpit-assisted 'do.
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Aaron Paul looks nothing like his Breaking Bad character in a brown tuxedo and patterned bowtie.
30 of 51 Jeff Kravitz/FilmMagic
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Julia Louis-Dreyfus pulls off this crimson flowing gown with sheer straps.
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Scandal star Kerry Washington is sparkling in her draped-neck dress. Extra points for rocking a lizard on her clutch.
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We appreciate taking risks, but Julie Bowen is too bright in her neon-green strapless frock and teased 'do.
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Downton Abbey's Michelle Dockery appeared to have chosen the wrong size of her wrinkled blue dress, judging from the puckering of the sheer top.
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Julianne Moore, who starred as Sarah Palin in Game Change shines in bright yellow, but we're sweating just looking at her long sleeves and heavily draped skirt.
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Former Saturday Night Live star Kristin Wiig is quite dowdy in a pale-pink halter gown and wavy dark hair that needs a good brushing.
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30 Rock's Tina Fey chose color this year with an eggplant strapless dress accentuated with a black and gold neckline.
37 of 51 Jeff Kravitz/FilmMagic
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Mike & Molly star Melissa McCarthy is lovely in black with a pop of color on her polka-dot clutch.
38 of 51 Robyn Beck/AFP/Getty Images
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Melissa Rauch from Big Bang Theory is gorgeous in a one-shouldered emerald green gown with a touch of turquoise in her skirt.
39 of 51 Mario Anzuoni/Landov
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Big Bang Theory's Johnny Galecki should know by now that a velour jacket does not go well with tailored pants.
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We have to give a hit to The Good Wife's Christine Baranski for being the one woman who showed off her legs in a short dress with a multicolored print.
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Girls' Zosia Mamet has way too many styles going on with a geometric and black skirt with odd cutouts.
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It's tough to match your hair to your dress, but Kelly Osbourne pulled it off. (We're not a fan.) We love that she's showing off her slim figure, but the color and fabric is all wrong.
43 of 51 Jeff Kravitz/FilmMagic
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Homeland's Morena Baccarin looks gorgeous in her strapless slate dress with a plunging neckline.
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Nurse Jackie star Edie Falco uses color blocking to show off her slim figure. The gold belt is a nice contrast to the blue and white.
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Jon Hamm and Jennifer Westfeldt rarely get it wrong on the red carpet. Hamm is chic in his tux and bowtie, while his girlfriend is classic and simple in a ruched blue gown.
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Now-blonde Elisabeth Moss has too much fabric and too much pattern on her dress.
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Funny woman Kathy Griffin needs to lighten up her too-drab jet black dress and black cuff bracelet.
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Sarah Paulson's dress might've looked better without the black belt and shoes that weigh down her dainty blue gown.
49 of 51 Jeff Kravitz/FilmMagic
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There aren't too many appropriate words to describe Lena Headey's choice of gown, er, lingerie. Seeing your underwear may be appropriate for Game of Thrones, but not broadcast TV.
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Is it just us or is Mandy Patinkin's suit jacket way too long?
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Modern Family's Sofia Vergara is usually a stunner, but we can't get past the blinding shimmer of her turquoise mermaid-style gown.