3: Kids react to Nyan Cat
The Fine Brothers do a lot of great videos, and their "Kids React" series is one of them, it's fun to see kids reacting to goofy viral videos. The kids' laughter and facial expressions always make you smile:
4: Mexican Nyan Cat
There have been a bunch of others from different nations, but this one has replaces the pop tart with a taco. The song changes a bit too.