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Justin and Katy Perry were honored at the ceremony — check out the full winners list!

The 2012 Billboard Music Awards are taking place May 20 at the MGM Grand in Las Vegas, and from Justin Bieber to Katy Perry, all of the stars are winning big. Check out the full winners list below and tell us if you love or loathe the choices!

-Billboard Millennium Award — Whitney Houston

-Top R&B Artist — Chris Brown

-Top Male Artist — Lil Wayne

-Top Duo/Group — LMFAO

-Hot 100 Song — “Party Rock Anthem” by LMFAO ft. Lauren Bennett & GoonRock

-Top New Artist — Wiz Khalifa

-Billboard Spotlight award – Katy Perry

-Top Social Artist — Justin Bieber

Do YOU agree with all of the choices, HollywoodLifers?

– William Earl

More Billboard Awards:

1. Billboard Music Awards 2012 — Best Red Carpet Looks
2. Billboard Awards 2012 Red Carpet Livestream — Watch It Here
3. Justin Bieber’s Billboard Awards Date Revealed — Will Selena Gomez Be Jealous?