Through the years: Justin Bieber and Usher

Justin Bieber might never have reached the amazing level of superstardom that he has, without the help and support of his big brother Usher.

We're taking a look at some of the most memorable photos of the duo snapped over the last few years.

Photo: Getty/ Getty Images Entertainment/ Andrew H Walker, Rick Diamond, Eugene Gologursky, Tim Mosenfelder, Kevin Winter, Christopher Polk/AMA2010, Jason Merritt, Aby Baker, Robyn Beck (AFP), Charles Eshelman, Kevork Djansezian