VMAs 2013 Countdown: Best Musical Performances Ever!

Tonight's 2013 MTV Video Music Awards lineup is chock full of amazing performers! Between Justin Timberlake (with rumored 'N Sync), Robin Thicke, Drake, and Miley Cyrus to Katy Perry, Kanye West, Bruno Mars, Macklemore and Ryan Lewis, it's bound to be a great night! But before the show, we wanted to take a look back