The 2012 Billboard Music Awards took place at the MGM Grand Garden in Las Vegas Sunday night (May 20). A slew of music superstars graced the red carpet, performed onstage and went home with a golden trophy.

Wiz Khalifa, dressed in a white T-shirt and black blazer, accepted the award for Top New Artist while Beyonce scored the Top R&B Album for her fourth studio LP 4. Lil Wayne was a winner in two categories: Top Rap Artist and Top Rap Album. Chris Brown, who performed "Turn Up the Music at the awards show, grabbed up the Top R&B Artist award and Rihanna earned an accolade for Top Streaming Artist.

Check out the winners list below.

Top New Artist

Bad Meets Evil

Big Sean

Foster the People

Scotty McCreery

Wiz Khalifa -- WINNER

Top Male Artist

Justin Bieber

Chris Brown

Drake

Lil Wayne -- WINNER

Bruno Mars

Top R&B Artist

Beyonce

Chris Brown -- WINNER

Cee Lo Green

Miguel

Rihanna

Top Rap Artist

Drake

Lil Wayne -- WINNER

LMFAO

Nicki Minaj

Wiz Khalifa

Top Streaming Artist

Lil Wayne

LMFAO

Nicki Minaj

Bruno Mars

Rihanna -- WINNER

Top R&B Album

4, Beyonce -- WINNER

My Life II...The Journey Continues, (Act 1),
Mary J. Blige

F.A.M.E., Chris Brown

Talk That Talk, Rihanna

I Remember Me, Jennifer Hudson

Top Rap Album

Take Care, Drake

Watch the Throne, Kanye West & Jay-Z

Sorry for Party Rocking, LMFAO

Hell the Sequel, Bad Meets Evil

Tha Carter IV, Lil Wayne -- WINNER

Watch Wiz Khalifa in Maroon 5's "Payphone" Video