The now 18-year-old Justin Bieber celebrated his birthday with his girlfriend, actress/singer Selena Gomez over the weekend.

After being given the impressive gift of a $100,000 electric luxury car (a Fisker Karma) from his manager and Usher, Bieber joined Gomez for what he later tweeted as being a “#greatnight”.

Gomez, 19, also took to Twitter that day, saying, “Happy birthday to my best friend in the whole world!!!!”

It has been reported that Gomez flew in from the Florida filming of the movie Spring Breakers to attend her beau’s Los Angeles birthday party.

Throughout the night, photos were being posted on Twitter and it seemed the Biebs was happy to be with his girlfriend for the weekend.

Gomez wore a red, strapless dress, while Bieber went retro with an Elvis-inspired hairdo and black and white houndstooth jacket.

Bieber reportedly bought himself a substantial birthday gift, a $10.8 million mansion in Los Angeles. The home is reportedly still listed, meaning the deal may not be done, but Bieber isn’t the only one who digs the house. Since his split from Demi Moore, Ashton Kutcher has been renting the mansion for an shocking $50,000 a month.