The 2013 American Music Awards took place Sunday night and certain celebrity style choices made an impression.

Rihanna, who received the first ever Icon Award at the event, wore a strapless bra and sparkly shorts. However, it was the head wrap she sported that had everyone talking.

"Rihanna fine as hell. She came to the AMA's with her hair wrapped for bed and still killing you chicks," radio host Charlamagne Tha God tweeted during the show.

Kendrick Lamar Performs At The 2013 American Music Awards

Miley Cyrus hit the stage to perform her hit Wrecking Ball, and wore a top and underwear with a feline design. She added large transparent bracelets and earrings to her look.

Lady Gaga also strolled into the event with an animal theme. The singer rode in on a mechanical horse wearing a purple gown.

Pitbull & Kesha Take The Stage At The 2013 American Music Awards

Some others, however, stunned with classic gowns, including Christina Aguilera who accentuated her curves in an eye-catching white Maria Lucia Hohan dress and Taylor Swift who wore a gold Julien Macdonald dress

Scroll through the gallery to see what the stars wore to the award show held at the Nokia Theatre in Los Angeles, Calif.