Billboard hosted it's annual awards show last night in Las Vegas at the MGM Grand.  Nicki Minaj, Lil Wayne and LMFAO were among the most frequently nominated artists this year.  The coveted award for Top Rap Song went to LMFAO for their hit single 'Party Rock Anthem'.  Lil Wayne walked away with the award for Top Rap Album.  Nicki Minaj won the award for Top Streaming Song for 'Super Bass'.  Wiz Khalifa earned the title of Top New Artist although we're confused as to how he ended up in that category to begin with.  Chris Brown and Beyonce'  took home awards for the R & B categories.  Bey for the title of Top R & B album and Breezy for the title of Top R & B artist.  Aventura's Romeo Santos won an award for his album 'Formula: Vol. 1' in the category of Best Latin Album.  Watch performances from Chris Brown and Usher at the 2012 Billboard Music Awards below. 

Chris Brown 'Turn Up The Music'

Usher 'Scream'