Rob Kardashian is back! Well, sort of.
Check out RK's post (below):
[Image via Instagram.]
Want to understand Justin Bieber better? Join the club!
Luckily, the Biebs is laying out all the clues to the mystery of his heart in the brand new lyric video for his newest song All That Matters.
Ch-ch-check out the video (above) to see Justin pour his heart out in 3D!