Justin bieber treats his fan to sing

Justin Bieber treats his fans to sing along his new song "Boyfriend" in "Tonight show with Jay Leno" in Calfornia

Justin bieber jay leno

Justin Bieber Jay leno

Justin Bieber in "tonight with Jay Leno"

The 18 years old surprised a host of his supporters waiting for it's glimpse of their idol outside "tonight show  with Jay Leno" Studio in Burbank, California. Justin pulled up studio van and was greeted by screams and chairs before he got out and started interacting with his delighted supporters.

Dan wrote on twitter: "We played acoustic for all the fans waiting outside the NBC gates. Great to see how much JB appreciates his fans. (sic)"

Justin Bieber in California

Following the impromptu performance, Justin entered the building and was interviewed by host Jay Leno just before playing his song "boyfriend" second time in one day. When he started singing the crowd went crazy and each and every person in the crowd enjoyed his brilliant singing.

Justin Bieber in Paris 

It's not the first time the 'Never Say Never' hitmaker has treated fans to a surprise performance.He sang "Boyfriend" in balcony of Paris, at his hotel Mexico earlier this month.

Justin Bieber created a traffic jam with his performance outside the universal music capital by singing to thousand of fans Blessed with megaphones and with Dan strumming with guitar at backside. (donot copy paste)