Justin Bieber attended the Billboard Music Awards in Las Vegas on Sunday night, and while accepting the fan-voted Milestone Award, the 19-year-old singer was greeted by a chorus of boos.

Justin waited a few moments to begin his speech, and while he looked utterly stunned he maintained his composure. "I'm 19 years old," he began. "I think I'm doing a pretty good job. Basically from my heart I really just want to say it really should be about the music. It should be about the craft that I'm making. This is not a gimmick ... I'm an artist, and I should be taken seriously and all this other bullsh*t should not be spoken of."

Bieber thanked manager Scooter Braun, his family and his fans, and he later tweeted, "2 performances and 2 awards. Grateful to my #Beliebers . Our awards. Love u ... I love music, my fans, my family, my friends.. And I love The Lord ... Blessed." Looks like it didn't bother him too much...

But that wasn't all! Taylor Swift, who was also nominated for the Milestone Award, was asked in the press room about Biebs receiving the honor at so young an age, to which she replied, "Can we have another question, please?" Ouch! Looks like someone's got Selena Gomez's back!