Many have fought over who the better Justin is: Timberlake or Bieber? Well, now you can have them both! Check out the mash-up and see if you can decide which Justin is better!

Much love to YouTube user, RaheemdaplayaO4, for throwing N’Sync’s “Girlfriend” and Bieber’s “Boyfriend” together for a pretty cool mash-up! Not bad!

N’Sync’s “Girlfriend” is the third and final single from the groups third studio album, Celebrity, released on April 15, 2002!

Bieber’s “Boyfriend” is a song  from his third studio album Believe which was released this year!