Justin Bieber and Shawn Mendes open American Music Awards

Justin Bieber opened the American Music Awards with a medley of songs to mark 10 years since his first performance at the ceremony (AP Photo/Chris Pizzello)

Justin Bieber opened the American Music Awards with a medley of songs to mark 10 years since his first performance at the ceremony.

The latest major awards show to arrive amid the pandemic took place at the Microsoft Theatre in downtown Los Angeles, with a limited audience inside the venue.