Emma Stone has the look of an MTV Trailblazer. (All photos, Getty Images)
Later, Janelle Monae had some fun singing "We Are Young."
Wiz Khalifa and fiance Amber Rose get ready to play hard.
Sky Blu, Goonrock and Red Foo of LMFAO and singer Ciara were primed.
Harry Potter's Hermione never wore dresses like Emma Watson's.
Ryan Guzman and Kathryn McCormick of dance film "Step Up 4" get close.
Dan Auerbach and Patrick Carney of the Black Keys work blue.
Kristen Stewart keeps it short, silvery and sweet.
Charlize Theron goes with red, and a hint of an Evil Queen smile.
Chris Hemsworth joins his "Snow White" pals and keeps it casual.
Paris Hilton doesn't have to ask her mirror who's the fairest.
"Pretty Little Liars" star Lucy Hale brightened things up.
Andy Samberg hosted in 2009, the first year 'Twilight' was a nominee.
Brie Larson from '21 Jump Street' looks fresh.
'Hunger Games" star Elizabeth Banks won later for her turn as Effie Trinket.
'Twilight' alum Julia Jones looks quite bright.
Jessica Biel, without new fiance Justin Timberlake for the moment.
Julianne Hough bares her midriff with Leighton Meester on deck.
Christina Ricci took the plunge, in black.
Comic Jeff Dye, left, arrives in Raider-esque regalia.
