Justin Timberlake gets a post-performance metal remix.
Officials order the removal of a provocatively adorned outdoor Christmas tree.
WATCH: YouTube mashes up an entire year of pop culture in just 5 minutes.
Bruno Mars beats Miley Cyrus and Justin Timberlake to be named Billboard's best of 2013.
The R&B superstar releases a new album and 17 music videos to "speak directly" to her fans.
The photography-based social media site is adding new features to compete with other apps.