OMG! We were going to go check out Justin Bieber's youtube page (you know, just because we love him!= when we noticed that all of the vids were gone! We think this is a large scale hack! Lady Gaga's "Bad Romance" and Bruno Mars' "Grenade" also suffered!
We're not 100% if it's a hack or if it's something else, but we'll let you know ASAP! xoxo (cartermatt)