J-Si and Kinsey are celebrating their five year anniversary, but J-Si felt shamed by Bieber’s bottom. Who has the better buttocks… J-Si or Justin? Listen and read J-Si’s Blog: 5 Years!!!!

 
Check out the pic of Justin’s hiney below!

Look

A photo posted by Justin Bieber (@justinbieber) on Jul 6, 2015 at 7:38pm PDT