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 ...

Justin Bieber posts a picture kissing his wife, Hailey Bieber, on the cheek. The carousel of pictures consisted of pictures of Hailey, with her putting up her middle finger ...