Derek isn't a relative of Canadian teen sensation Justin Bieber. Rather, he is Justin Bieber and the reason that "Beliebers" are bragging on Twitter.
Bieber was followed by a TMZ reporter who peppered him with various questions.
Finally, the teen sensation just jokingly pretended he's not famous and not Justin Bieber.
"I'm famous? I'm a celebrity? I didn't even realize. My name's Derek. I don't even know what you're talking about. I'm just a look-alike. I don't know why you guys are following me around with cameras," said Bieber.
Since then, Derek Bieber has exploded and "Beliebers" are claiming victory and dominance over Twitter.
Below are the video of his Derek Bieber moment (starting at 1:15 minutes) and tweets of victory from "Beliebers."
Derek Bieber is still trending! Beliebers run the world and we own twitter yo! You mad? Stay mad bro! ;)
Derek Bieber is STILL trending. try telling me now that Beliebers dont own twitter.
Derek Bieber is still trending ? LIKE A BOSS.
The awkward moment when derek bieber's been a TT for hours and people still don't know who he is.
Derek Bieber has been on the Trends for over 15 hours now. Beliebers really own Twitter. #swag
Dear @twitter, we are serious we want a verified purple belieber check mark. Sincerely, 11,000,000+ Beliebers.