Justin Timberlake scored his second No. 1 album in less than a year with the release of Part 2 of 2 of his The 20/20 Experience. The first collection released in March 2013 with nearly one million in first week sales. The second half dropped in September, taking the top slot on the Billboard charts again. It's no surprise, though. He be on his suit and tie, s--t. Check out more examples of bossed up sequels, when artists double (or triple) up on an already great work.