Of course it was Diddy! Writing the latest chapter in his storied history of gift-giving (his son Justin got a ridiculously expensive car for his 16th birthday as well), Diddy has reportedly handed the keys to his white Lamborghini Spyder over to the now-legally-allowed-to-drive Bieber. How was this information acquired? Bieber was spotted whipping the car around L.A. this week, with Sean Kingston riding shotgun; also, they stopped at Pinkberry. Okay, Internet, great job today. You can go ahead and shut it down for the weekend. [Boombox]