10 Things Justin Bieber Should Do To Celebrate Graduating High SchoolJustin Bieber is not your average teenage boy. He's already taken his first trip to Europe -- in fact he's seen the whole world. He's already gotten a full time job. And he can afford to buy anything he wants. He's got a famous girlfriend in Selena Gomez. So what should the most famous teenager in the world do to celebrate graduating from high school?