The Moment: Justin Bieber kicking off his "Music Mondays" series of releases and dropping songs like "Heartbreaker," "Bad Day" and "PYD," featuring R. Kelly
When It Took Place: October
Why It Was Memorable: We never thought we would be putting "Justin Bieber" and "R&B" in the same sentence. But Biebs' latest songs have been decidedly R&B and, dare we say, grown up and mature. And him teaming up with R. Kelly was really just icing on the cake. We can't wait to see what else he's got in store for 2014.
Photo Credit: Getty Images