Justin Bieber will wrap up what appears to be another chart-topping week by appearing during the finale of Sunday's (22Nov15) American Music Awards.

The pop star is expected to beat One Direction to the top of the Billboard 200 album charts on Friday (20Nov15), and he'll celebrate two days later with a performance at the end of the awards bash in Los Angeles.

Bieber's name has been added to the list of performers that also includes show host Jennifer Lopez, 5 Seconds of Summer, Ariana Grande, Coldplay, Gwen Stefani and The Weeknd.

Announcing the news on Twitter on Wednesday (18Nov15), ceremony bosses wrote, "OMG (oh my God)!! @justinbieber is PERFORMING a medley of hits during the @TMobile Finale."