LL Cool J
The repeat host was all ready to knock us out with another Grammy Noms concert.
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Lady Gaga
Hey, if you're going to "Marry the Night," this is prolly how you want to look doing it, right?
Nicki Minaj
The singer announced the nominees for Record of the Year: "Rolling in the Deep" by Adele, "Holocene" by Bon Iver, "Grenade" by Bruno Mars, "The Cave" by Mumford & Sons and "Firework" by Katy Perry.
Rihanna
Ri-Ri rocks out to "We Found Love."
Kimberly Perry
Big-time CMA Awards winner the Band Perry also scored a Best New Artist nod.
Ludacris
The rapper gets a little country with Jason Aldean on "Dirt Road Anthem."
Bruno Mars
The Doo-Wops & Hooligans crooner nabbed a number of noms tonight, including the biggies: Song of the Year, Record of the Year and Album of the Year.
Taraji P. Henson
The stunning star announced the nominees for Best New Artist:the Band Perry, Bon Iver, J. Cole, Nicki Minaj and Skrillex.
Grandmaster Flash
The hip-hop icon performed his classic "The Message" with a little help from Lupe Fiasco, LL Cool J and...
Common
Yep, the rapper turned actor turned rapper again to rock out with Grandmaster Flash.
Usher
The artist also known as Terry Raymond IV gave us goose bumps during his performance of "Stand by Me" and "You're All I Need to Get By" with Valerie Simpson and Mike Stoller.
Katy Perry
A nominee herself for Record of the Year, she also announced the Album Of the Year noms: 21 by Adele, Wasting Light by Foo Fighters, Born This Way by Lady Gaga, Doo-Wops & Hooligans by Bruno Mars and Loud by Rihanna.
Lady Gaga & Sugarland
After watching this pairing perform "You And I," we really wish these two musical acts would go on tour together.