• Share
  • Tweet
  • Share
Justin Bieber

AKM-GSI

Justin Bieber isn't letting his rocky romance with Selena Gomez get in the way of business.

The Biebs wrapped up a two-hour rehearsal at about 5 p.m. today for tomorrow's American Music Awards. A source tells us he did a few run-throughs of a medley of his songs as well as a performance of "Beauty and a Beat" with Nicki Minaj.

"He was totally professional," the source said. "He was focused on the choreography. There are a lot of dancers."

Just last night, he and Gomez were spotted apparently getting into an argument at a restaurant. The evening ended with Bieber driving away from her house after she wouldn't let him in. However, Bieber's car was back at Gomez's place this morning.

Gomez is not expected to be at the AMAs, which air tomorrow on ABC at 8 p.m./7 p.m. Central.