‘ Written by Entertainment Tonight Justin Bieber is saying goodbye to his blue Ferrari. The Purpose singer made an appearance at the Barrett-Jackson collector car auction in Scottsdale, Arizona, over the weekend, where he joined West Coast Customs and Velocity to auction his luxury automobile for over $400,000.”I’ve had it for roughly two years now. And it was my first Ferrari,” Bieber said. “I have to say goodbye to my baby! … I’m gonna leave a pair of my old Calvins in there.”And that’s not