Justin Bieber Releases Next Single "All That Matters"—Listen Now!

E! OnlineJustin Bieber Releases Next Single "All That Matters"—Listen Now!E! OnlineJustin Bieber is keeping his promise. After telling fans that he'd be releasing a new song every week for 10 weeks as part of his Music Mondays project, Biebs just dropped "All That Matters." The 19-year-old took to Twitter to explain the lyrics behind ...