Mariah Carey And Nick Cannon Talk Fashion On Oscar Red Carpet

'She tells me what she's going to wear, and I go pull something out of the laundry hamper,' Cannon jokes.

For her role as social worker Miss Weiss in the Academy Award-nominated film [movie id="415966"]"Precious,"[/movie] [artist id="976"]Mariah Carey[/artist] underwent a drastic make-under, sporting a mustache, mousey tresses and dowdy clothes that left the otherwise-glamorous singer nearly unrecognizable.

But, as any red-carpet-watcher would expect, Carey was nothing short of stunning when MTV News caught up with her and husband [artist id="1233784"]Nick Cannon[/artist] at the Academy Awards, where the two joked about getting dressed for the big night.

"Of course, she tells me what she's going to wear, and I go pull something out of the laundry hamper and iron it and put it on," Cannon joked. "But she's fabulous."

"He doesn't hardly iron a thing," Carey laughed.

"Yeah, I don't know how to iron," Cannon admitted. "I'm surprised this isn't wrinkled now."

Carey's purple gown clearly didn't come out of a dirty-clothes hamper, but instead of trying on a slew of dresses from different designers, Carey streamlined her wardrobe-selection process by working directly with Valentino.

"We worked with them and did a lot of different sketches and stuff. We just thought it would be a nice moment, a leg moment for a different thing," Carey said, good-naturedly referencing her frequently exposed décolletage.

"What if I had my leg out?" Nick asked.

"You could start a new trend," Carey said.

"What if I had a split from the top of my pants?"

"You do you, man," she said. "That's why I love you."

Relive all the best moments from the 2010 Academy Awards with photos, interviews, blogs, post-show analysis and more, right here at MTV News.