2016 AMAs: Best, Worst & Wackiest Dressed Stars

Celebrities hit the red carpet at the 2016 AMAs last night, and while some stars shimmered — others missed the mark. See the photos on RadarOnline.com.

Worst: Uh oh! Chrissy Teigen's high slits allowed for an embarrassing wardrobe malfunction on the red carpet.

Worst: Didn't we leave pastels behind in the 90s and early 00s? Julianne Hough's futuristic barbie look was just all wrong.

Wackiest: There were no words for singer Z LaLa's Cruella de Vil inspired attire.

Best: With her signature ponytail in full swing, Ariana Grande brought plenty of sass to her red carpet arrival, wearing a pair of Alexander McQueen trousers with a lace lingerie top.

Worst: Blake Jenner looked more ready for a bowling alley date than an awards show.

Wackiest: Idina Menzel seemed to be channeling her Wicked days, but the Broadway star's look was a little too witchy for the red carpet.

Best: Niall Horan was positively studly in a trim grey suit complete with a pocket square and retro glasses.

Worst: Known for being well-dressed, Matt Bomer shocked in a dumpy looking jacket.

Wackiest: Heidi Klum's sparkly jumpsuit looked like, well, wrapping paper.