Every one knows about"Justin bieber" he is mega star. in parallel world I think the pop music is know by Justin bieber for sure. his songs hits the every records and made a new record as well, not only his songs but his lifestyles influence everyone. he doesn’t follow the trend he made his own trend and others follow it. His fan following is huge. he is most followed celebrity on Twitter and he has more than 1 billion followers on instagram as well.