Grammy Awards Fashion: The Best, Worst And Gaga

We flip through some memorable looks before Sunday's show, from glamorous Katy Perry to Rasta-inspired Christina Aguilera.

The Grammy Awards are nothing like the Oscars when it comes to fashion. The approach is less about what's trendy or appropriate and more about a star's own personal style. And that means there are always hits but many times there are misses and then, too, as we've learned, there's the Gaga, who can't be defined as good, bad or otherwise.

So with the Grammy red carpet set to kick off Sunday night, MTV News takes a look back on the best and worst of Grammy fashion.

The Best

Keri Hilson brought the glamour last year in a nude-colored fishtail Dolce & Gabbana gown that showed off the singer's feminine side­ — and her edgy one — thanks to a beaded belt around her waist.

In 2009, Katy Perry was equally ladylike in a baby pink Basil Soda gown. The strapless dress fit the star perfectly and the fan-like detail at the waist kicked the dress up about 10 notches.

Gwen Stefani was transitioning from punk queen to fashion icon in 2001. She hit the carpet that year in a red, '50s-inspired gown that was incredibly elegant with its saturated red color and simple hemline embellishment.

Pink donned a grey-and-black gown that added sophistication to Pink's edgy tats and hair, and certainly showed that Pink can be as soft as she is hard.

Christina Aguilera's dramatic red-carpet looks can sometimes appear a bit harsh on camera, but when she opted for a pink strapless gown in 2007, she emitted elegance and grace. She accessorized the dress with lots of bling and soft curls.

The Worst

Paula Abdul's bright yellow, pleated gown, complete with gladiator-like metal details in 2009 was over the top. Her stiff, beehive hairdo managed to make the already overdone look even worse.

Beyoncé channeled Cinderella for the 2008 Grammys but the dress overtook her. The baby blue color might have been a nice pick if not for the silver sequins and the heavy tulle skirt.

Jennifer Lopez made headlines in 2000 with a buzzed-about Versace dress that redefined red-carpet style, but 10 years later she looked like she was trying to reclaim that magic in her half-gown, half-mini dress. (Spoiler alert: The magic was not reclaimed.)

Between the Rasta-like braids and the plunging neckline, Christina Aguilera looked like she was ready for the beach and not the red carpet in 2001 in her hot pink gown. What was meant to be formal wear looked more like a beach cover-up.

Like Christina in 2001, Sheryl Crow also tried out a lace-up, plunging neckline the following year. Her romper (yes, romper) was accessorized with matching cowboy boots, a full-length suede jacket and sunglasses.

The Indefinable

Lady Gaga hit the 2010 Grammy red carpet in a lavender-and-nude Armani Privé design. It couldn't be defined as a piece of clothing; more like a walking art piece that had the superstar channeling some kind of space creature.

Share your favorite (and least favorite) Grammy red carpet looks with us in the comments below!

Don't miss "Snooki & Sway: Live From the Grammys," a red-carpet live stream kicking off Sunday at 6 p.m. ET on MTV.com. And stick with us all Grammy night for coverage of the red carpet, the show, the afterparties and beyond!