Grammy '09 Quick Changes: Vote!

Glam on the red carpet, funky onstage – which style was hottest? Vote on Joe Jonas and more! By Melissa Liebling-Goldberg

JOE JONAS

Steve Granitz/WireImage; Mark J. Terrill/AP

The singer hit the red carpet with his brothers in a Versace tuxedo, but got casual on stage, alongside Stevie Wonder, adding a David Yurman bracelet and Avakian necklace to his vest and T-shirt.

TAYLOR SWIFT & MILEY CYRUS

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The best friends arrived in coordinating black gowns – Hervé Léger for Miley, Kaufman Franco for Taylor – but changed into casual tunics and skinny bottoms for their duet on "Fifteen."

CARRIE UNDERWOOD

Kevin Mazur/WireImage; Lucy Nicholson/Reuters/Landov

The Grammy winner sparkled on the red carpet in her beaded Zuhair Murad gown, but showed off her incredible legs in a chiffon-sleeved minidress while performing "Last Name."

JENNIFER HUDSON

Larry Busacca/Getty; John Shearer/WireImage

The singer was perfectly chic on the red carpet in her pleated RM by Roland Mouret dress, amping up the sparkle in her clinging black dress for her performance of "You Pulled Me Through."

KATY PERRY

Kevin Mazur/WireImage; Lucy Nicholson/Reuters/Landov

The typically cheeky singer wore an elaborate pink gown from Lebanese designer Basil Soda for her arrival, but got the crowd rocking with her fruit-themed mini, custom-designed by The Blondes for her performance of "I Kissed a Girl."

ESTELLE

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The British singer looked to the future for her hard-edged silver dress on the red carpet and her jeweled metallic mini while performing "American Boy" with a coordinated Kanye West.

M.I.A.

Chris Pizzello/AP; Mark J. Terrill/AP

The very pregnant star showed off her funky style with a bold blue Manish Aurora dress, matching Christian Lacroix for Gola sneakers and Erickson Beamon jewelry. For her performance, the rapper chose a see-through House of Holland dress and more Erickson Beamon earrings.