Every half-decade or so, Justin Bieber sloughs off the callused skin of the pop superstar he became at age 15 to reveal the tender and quirky R&B singer he's always been at heart. He did it in 2013 ...

There was just something in the air in 2016. Maybe our chokers were too tight or we were too busy perfecting our mannequin challenge, but this era was iconic. It was the year of the nonstop internet ...