A billion is a lot. Like a lot a lot. So, it's pretty impressive that Justin Bieber's 2010 music video for "Baby" now has more than 1 billion views on VEVO.
Psy's "Gangnam Style" is the only other video to have reached that milestone online. It's garnered almost 2 billion views on YouTube.
So, we set out to find other people, places and things that have hit the billion mark.
Entertainment Tonight: Did Katy Perry and John Mayer split? (REPORT)