WATCH: Pentatonix Performs The Evolution Of Beyoncé

If you're not familiar with Pentatonix, then you must not be a regular user of the Internet. The a cappella group has been making viral videos since they won season three of The Sing-Off. Their latest is a ambitious cover of all things Beyonce. The group tackles the singer's long history of music, starting with her Destiny's Child days and ending with "Ego."

The group recently sat down with The Hollywood Reporter to explain how the video came together:

"People just like evolution videos -- "Evolution of Dance" was one of the biggest YouTube videos in history, and 'Evolution of Music' ended up being our biggest YouTube video," Scott Hoying (center) said. "Everyone has been asking for another evolution-type video, and I'm the biggest Beyonce fan of life, so I said, 'No one will even have to work, I will handle this entire arrangement!' The next day, we had the song outline with every transition -- I was ready."