Some forgotten 2010's singer or some famous singer throughout this whole decade?
Answer on How will we see Justin Bieber by 2019?
He won't be around in 2019, he won't even be around in 2013. He's going to be like the Jonas Brothers, they were around for like 2 or 3 years, and now you don't really hear much from them. Same thing will happen with Justin Beiber.