YouTube Enlists Top Talent for Year-End Video

Smosh's Ian Hecox and Anthony Padilla spoof 'First Kiss'

John Oliver and Conan O'Brien make cameos in the annual #YouTubeRewind video

YouTube enlisted the help of 120 YouTube creators from around the world to salute 2014 with its annual Rewind video. 

The video begins with the biggest YouTuber of them all, Swedish gamer PewDiePie, and includes appearances from comedian Grace Helbig, activist Tyler Oakley, beauty vlogger Michelle Phan and more. Even Jimmy Kimmel, Conan O'Brien and John Oliver joined for cameos. 

The video also salutes some of the biggest moments from the year, including the Ice Bucket Challenge, Frozen and Kid President. 

In a blog post, YouTube calls it "the biggest and most international Rewind video yet." 

YouTube has also released its video lists for the year. Leading the top trending video list is Mutant Giant Spider Dog. "First Kiss" by Tatia Plieva comes in at No. 3. The top music video list is led by Katy Perry's "Dark Horse." Enrique Iglesias, Shakira, Taylor Swift and Meghan Trainor also have videos that made the list. 

Watch the YouTube Rewind video here and try to spot all 120 YouTube creator cameos. 

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