2015 was an eventful year for viral videos and stars.
How could we forget cultural icons like Left Shark who left his indelible mark on the Superbowl?
Or stars like PewdiePie who have completely transformed how you can make a living by filming yourself playing games on the internet.
Four-year-old Heaven wowed us with moves that could even make Beyoncé jealous.
And of course John Oliver, who was the voice we needed to vent every single one of our frustrations.
Well, get nostalgic and check out the full YouTube Rewind below to relive the best moments of the past year.