Justin Timberlake is back for 2013! With a new album underway, Justin performed an unbelievable version of his latest single "Mirrors" at the 2013 awards. It's the first time he's graced the BRITs stage since 2004, and boy did he make it a performance to remember. Now, we're sharing his full HD performance with you to watch on repeat, or, as many times as you'd like! Enjoy.