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 with his album "Journals,

Justin Bieber has been a chart-topping pop star for most of his life, signing with Scooter Braun at just 13 years old after captivating the web with his covers on YouTube. At 27, the baby-faced, swoop-haired Canadian singer became the youngest solo artist in history to notch 100 songs on the Billboard Hot 100,