Lady Gaga definitely ruled the Grammy Awards red carpet on Sunday night (January 31). The pop star and Grammy winner somehow manages to defy all the rules. Just when you think she's done everything bizarre there is to do in the world of fashion, she shows up in a silver dress that looks like a planet, may have been designed by classic Italian designer Armani and carried off a pointy chandelier like a common accessory.

With Lady Gaga out of the way, it's not easy to decide the best and worst looks of the night. Lea Michele of "Glee" killed it in her one-shouldered black dress with feathery miniskirt. Adam Lambert also looked effortlessly chic in his sparkly blazer. And Taylor Swift did not disappoint in her sparkly deep-teal gown with off-the-shoulder detailing.

Best New Artist nominee Keri Hilson dazzled in her nude-colored, fishtail-hemlined, va-va-voom Dolce and Gabbana dress. Speaking of va-va-voom, Beyoncé's very tight, zipper-front nude-colored gown kept it interesting thanks to geometric patterning throughout the entire dress.

Both Pink and Katy Perry sparkled. Pink stood out in a feminine silver gown, while Perry's Zac Posen gold gown was funky thanks to a skintight fit and gold flower decals. Fergie looked great in her royal blue minidress, and she managed to be a bit space-aged thanks to a fun silver trail of fabric running through the dress.

Then there were looks that straddled the line between good and bad. Miley Cyrus' little peacock-blue dress seemed to do just that. The little dress fit her well but looked too old for the 17-year-old.

Carrie Underwood's silvery white gown didn't do her justice thanks to some strange strappy detailing on her shoulders, and the dress' loose bodice didn't fit her body right. Ciara's bizarre lace Givenchy jumpsuit was overwhelming for the singer. And Colbie Caillat's gold strapless dress didn't feel right for the typically beachy singer.

Stick with MTV News for our coverage of the 2010 Grammy Awards! We'll have reports on your favorite nominees, party photos, behind-the-scenes video and much more from the big show!