Uh, this is what happens when you give a 17 year-old dozens of millions of dollars. Justin Bieber is charitable with strangers and generous to his friends and family. Justin gifted his longtime bestie, Ryan Butler, with a two-door Ford Mustang Convertible.

Justin posted the photo, along with the caption above, on his Twitter page.

Selena Gomez was away, but Justin savored the moments that he got to spend with those who treat him like a normal person. Bieber Tweeted: "Spending time with family -- feels really good. Going to get to see these smiles on Christmas. Merry Christmas from the family!"

Hmmm. I think JB and Ryan are close enough that Ryan won't feel guilty about receiving such an expensive present from his friend, which is great! Receiving a car for a present is one of the most useful gifts that anyone could give someone else. Congrats to Ryan!