Hayden Panettiere is channeling her new Nashville rock star character in a gold Marchesa gown with navy overlay.

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

2 Broke Girls' Kat Dennings is radiant in a strapless J. Mendel red dress with gold Louboutins paired with a red lip.

Modern Family's Jesse Tyler Ferguson is always dapper in a black suit and TietheKnot.org custom bow tie.

The Big Bang Theory's Mayim Bialik looks frumpy in a deep red billowy dress and messy hair.

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.

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.

Leslie Mann looks like she sewed her grandmother's pearls on a top and paired it with a burnt-orange skirt.

Top Chef Padma Lakshmi is stunning in an orange Monique Llulhier gown that’s tight on top and flairs with a tulle skirt.

Phoebe Price's pale skin blends with her light dress that has way too much going on. (P.S. Who is she?)

Newly single Amy Poehler looks sexy in a tight sequined gown with a deep V-neck.

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.

Mad Men's Kiernan Shipka is as adorable as ever in a tea-length white satin dress.

Heidi Klum is channeling her inner Grecian goddess in a teal flowing gown with a bit of sex appeal highlighted by a high slit.

Jimmy Fallon is always classically chic in a classic black tuxedo and bowtie.

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.

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.

Modern Family's Sarah Hyland co-designed her pretty silver gown with applique cap sleeves.

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.

Mad Men's Jessica Paré looks great in white, one-shouldered gown with a skinny black belt and bright red lip.

Julianne Hough looks like an old Hollywood mermaid in turquoise sparkles and slicked-back flapper hair.

Julianna Margulies, star of The Good Wife, stole somebody's grandmother's couch to make her strapless gown. It would look better as furniture.

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.

The Good Wife's Archie Panjabi is wearing a teal satin dress is way too '80s prom. All she needs is a corsage.

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.

Nicole Kidman looks like she's ready for battle in her teal armor.

We wish that Claire Danes had just shown off her baby bump, because her billowing bright yellow dress is really unflattering.

New Girl's Zooey Deschanel is repeating her '80s style with a pale-blue Reem Acra tulle gown and an Bumpit-assisted 'do.

Aaron Paul looks nothing like his Breaking Bad character in a brown tuxedo and patterned bowtie.

Julia Louis-Dreyfus pulls off this crimson flowing gown with sheer straps.

Scandal star Kerry Washington is sparkling in her draped-neck dress. Extra points for rocking a lizard on her clutch.

We appreciate taking risks, but Julie Bowen is too bright in her neon-green strapless frock and teased 'do.

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.

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.

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.

30 Rock's Tina Fey chose color this year with an eggplant strapless dress accentuated with a black and gold neckline.

Mike & Molly star Melissa McCarthy is lovely in black with a pop of color on her polka-dot clutch.

Melissa Rauch from Big Bang Theory is gorgeous in a one-shouldered emerald green gown with a touch of turquoise in her skirt.

Big Bang Theory's Johnny Galecki should know by now that a velour jacket does not go well with tailored pants.

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.

Girls' Zosia Mamet has way too many styles going on with a geometric and black skirt with odd cutouts.

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.

Homeland's Morena Baccarin looks gorgeous in her strapless slate dress with a plunging neckline.

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.

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.

Now-blonde Elisabeth Moss has too much fabric and too much pattern on her dress.

Funny woman Kathy Griffin needs to lighten up her too-drab jet black dress and black cuff bracelet.

Sarah Paulson's dress might've looked better without the black belt and shoes that weigh down her dainty blue gown.

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.

Is it just us or is Mandy Patinkin's suit jacket way too long?

Modern Family's Sofia Vergara is usually a stunner, but we can't get past the blinding shimmer of her turquoise mermaid-style gown.