...which led to...

i love his facial expressions!

Me too! I wonder how much he practiced those.

at least 100 times!

Well all that practicing really paid off!

Reddit comments:

http://reddit.com/r/videos/comments/38tqf7/remember_the_guy_who_did_the_same_dance_for_100/

Madeon - Pop Culture

i love this whole page! <3

Me too! You'll probably enjoy this page as well:

http://pandawhale.com/post/63894/extraordinary-mashup-of-famous-movie-dancing-scenes-to-walk-the-moon-shut-up-and-dance

Another variation on this theme with Kylie Minogue, Britney Spears, Michael Jackson, Daft Punk, Kesha, and Madonna:

Found here:

https://reddit.com/r/mashups/comments/3blxmx/pop_culture_with_clips_from_all_the_samples_used/

I found Madeon performing this video live to be intriguing:

http://pandawhale.com/post/70079/madeon-pop-culture-live-from-2011-is-still-one-of-the-best-mashup-videos-of-all-time