The Pop Chart’s Winners & Losers of 2015

Hands up if, a year ago, you thought Justin Bieber would debut at #1 on both the Hot 100 and the Billboard 200 album chart in 2015. I see no hands, but Bieber did just that – a feat equaled this year only by the mighty Adele. It was another year of surprises in the always surprising music business. Here are pop’s winners and losers of 2015. (Photos: Getty Images)