YouTube has released its annual “YouTube Rewind” video — a mash-up of the of the most popular moments of the year. The meme-filled video features YouTube stars including PewDiePie and Bethany Mota as well as denizens of old-school media like Stephen Colbert and Conan O’Brien, all soundtracked by viral hits like Pharrell’s “Happy” and “Let It Go” from Frozen.
The company also created a “YouTube Ads Rewind” video, showcasing the most viral branded videos from the past year.
One of the most-shared brand videos of the year was Wren’s “First Kiss,” which has racked up over 94 million views to date. Other branded video successes include BuzzFeed’s “Dear Kitten” video for Purina and Nike’s World Cup ads.