The 18-year-old 'Boyfriend' hitmaker also asked picked Gomez from the airport before heading to her house, reported TMZ online.
The reunion didn't stop there. The couple were also spotted heading to The Laugh Factory comedy club by a van.
Entering the building separately, Gomez walked into the club first. Bieber then followed her, hiding his face under a baseball cap and bowing.
The pair reportedly called it quits two weeks ago because of their hectic schedules and trust issues.
It was rumoured that Gomez was jealous when Bieber was snapped watching "The Lion King" on Broadway with Victoria's Secret model Barbara Palvin.
It was also said that Bieber couldn't stand seeing the latino girl kissing co-star Nat Wolff when filming a scene for "Feed the Dog".