2015 American Music Awards: Red Carpet Arrivals

The "Good For You" singer SLAYED the red carpet in a sequined crimson halter dress. We've seen the front split before from the starlet, but the skeletal-esque side detail gave the sexy look an unexpected edge. And if you think the latter isn't much of a wow factor, wait until you see the back...

Tbh, we saw the dress before we saw the singer - and for a sec, we were almost sure this was Lady Gaga or Kesha. Gwen gets points for shocking us with this look and for making the wise decish to NOT do her signature red lip. Lordt knows that would've been overkill.

The "Fly Away" singer looks more like she swam to the AMAs in this jewel-toned octopus costume of a dress. We mean, we love the holiday and all but stop trying to make Halloween happen. We are so done.

If you thought you couldn't get any higher than Level Perfection, think again! The supermodel flaunted her ridiculously athletic bod in a sexy white crop-and-maxi combo. However, it's her newly bobbed hair that's causing maj envy. Girlfriend can pull off anything!

When your girl is Jennifer Lopez aka the host of the AMAs aka the winner of most outfit changes of the night, your red carpet look better be on point! Casper definitely brought his A game. Smart man.