Quick-change artist Kelly Osbourne threw off her punk-princess style with six glamor looks.

"When I borrow stuff I tend to keep it," Mariah Carey said of her loaner gems.

Mya called her Petro Zillia gown "flavorful, lollipop-and tasty-delicious."

"It was hard getting into the boots," confessed Shania Twain (in Givenchy couture).

Heidi Klum (in Versace) revisited the '80s with her copresenters, rockers Hall & Oates.

Flashy designer Cavalli ruled the red carpet

"It's whimsical and sweet and pretty," gushed LeAnn Rimes, one of a flock of songbirds sporting duds by the night's big fashion winner. Italian designer Roberto Cavalli, 63. Cavalli says he wanted his corseted spring line to "defy the norms of the usual gown." The dresses certainly defy gravity. (Carmen Electra used double-sided tape "to make sure I just stayed in.") Singing in a corset? "If anything," said Christina Aguilera, "it'll push those high notes out of me."

PEACENIK CHIC
Tie-dye? So over. Sheryl Crow pleaded in a beaded tee and Stella McCartney tux.

Electra called the look "feminine."

Ashanti sported a silk number.

Rimes opted for pink chiffon.

Hers "has edge," said Aguilera.

"They still talk," 'N Sync's Joey Fatone says of Timberlake and Spears (in Cavalli).

Durst calls Spears "amazing."

Timberlake is "having fun," says Fatone.

Britney's Boys
What's up with Justin? And Fred?

Poor Britney Spears and Justin Timberlake. When they're not fending off rumors of a romantic rapprochement, up pops a report of a new paramour—or an Osbourne in their laps. The exes—sitting just six seats apart in L.A.'s Shrine Auditorium—grimly endured audience roars when AMA cohost Sharon Osbourne pleaded for a reconciliation as her kids Kelly and Jack plopped down on the popsters. Meanwhile the other deafening buzz in the room was talk Spears is making beautiful music with Limp Bizkit singer Fred Durst. "I really like her and thats about all I should say," the punctuation-scorning rocker, 32, wrote on his Web site Jan. 9, adding on Jan. 11, "anybody out there who has a serious problem with my feelings for britney should just chill." The two "are friends and they've hung out as friends will do," insists a rep for Durst; Spears's camp is mum. A pal points out that Durst—previously linked to Christina Aguilera and Carmen Electra—might not be above a publicity-generating prank. But Durst and Spears were recently spied together at a party Jan. 9 at L.A.'s Latin Lounge. At the awards Timberlake and Spears, both 21, shied away from reporters and let their friends do the talking. "Enough already!" said Timberlake's 'N Sync bandmate Joey Fatone. "Give them a break. Let them breathe a little."