The 2015 American Music Awards are officially underway with a sexy dance number from host Jennifer Lopez, broadcasting on ABC from the Microsoft Theater in downtown Los Angeles. The show is bursting with high-profile performers, including Justin Bieber, Gwen Stefani, the Weeknd, Macklemore & Ryan Lewis, Ariana Grande, Nick Jonas and more, so it's sure to be an exciting evening. Rihanna is also set to make a big announcement about her new album ANTI, and Demi Lovato will duet with Alanis Morissette for the first time ever. Overall, it's shaping up to be an epic night for music fans.

Check out all the performances below, and peep the full list of winners here.

5 Seconds of Summer

 

Selena Gomez

Demi Lovato

Carrie Underwood

Ariana Grande

One Direction

Gwen Stefani

Nick Jonas

Coldplay

The Weeknd

Macklemore & Ryan Lewis

Walk the Moon

Luke Bryan & Karen Fairchild

Alanis Morissette & Demi Lovato

Celine Dion

Pentatonix

Justin Bieber