The singer looks great in his suit.
The singer looks lovely in Emerson.
The couple keeps things black-and-white.
The How I Met Your Mother star wears John Varvatos.
The "Somebody That I Used to Know" duo makes sure your remember them, wearing Jaime Lee Major (Kimbra) and Jack London (Gotye) .
The singer suits up in Yves Saint Laurent.
The Big Bang Theory star keeps is cazh.
The singer looks dapper in Yves Saint Laurent.
The tatto artist walks the red carpet in Derek Lam .
Nate Ruess, Andrew Dost and Jack Antonoff hit the red carpet.
The Girls star looks great in this glam gown.
The model works it in Joy Cioci.
The Grammy winner in Eden Diodati.
The singer-songwriter stands out in this confection.
The actor-rapper Grammys host wears an Armani suit.
The NCIS star gives us the thumbs-up.
The rapper hits the red carpet in Tom Ford.
The singer wears Giorgio Armani.
The TV host keeps things light with this springy dress.
The longtime couple hit the red carpet.
Karen Fairchild (in Dolce & Gabbana), Kimberly Schlapman, Jimi Westbrook and Phillip Sweet look great all glammed up.
Maroon 1, anyone? The X Factor host keeps things interesting with this colored tux.
The singer rocks this eye-catching Genelle Brooks x Love Collins dress.
The Grammy winners hit the red carpet.