He was the nonstop trending topic of 2013: The gigs at the Super Bowl (with Jay Z) and the White House (with the president). The albums. The movies. And all those viral videos with Jimmy Fallon, including the one that’ll make you never want to tweet again. Amy Wallace talks to Justin Timberlake about the many moments that made him a MOTY, from the undeniably glorious ones to a couple that, frankly, he’s @!*$%# pissed off about.