Credit: Michael Rozman/Warner Bros.

Watch out, America: Justin Bieber is legal!

The pop superstar turned 18 years old on Thursday -- and appeared on The Ellen DeGeneres Show to announce his new single, "Boyfriend," which drops March 26.

But, more importantly, what to get the growing boy who has everything for his special day?

His longtime manager Scooter Braun found just the thing, and surprised him with the small token of affection during the show: a Fisker Karma, an eco-friendly sportscar with a starting retail price of about $102,000.

"You work really really hard," explained Braun of the extravagant gift before its unveling. "I always yell at you don't get anything flashy. You know, we're not about that."

"Be humble, be humble and I kind of broke my own rule," Braun admitted. "So we wanted to make sure your were environmentally friendly . . . we decided to get you a car that would make you stand out . . . you're kind of freaking out right now."

Tell Us: Is the gift too over-the-top?