It's the cup song from the movie Pitch Perfect! Has anybody seen it? I loooove that movie! Except it has its inappropriate moments...so I love it if I watch it on clearplay.
Fat Amy crushes it. (;
Anyways, after I watched Pitch Perfect and saw Anna Kendrick do this awesome cup song, I decided to look up some tutorials on YouTube and learn it myself. It took me a couple hours, but it was so worth it! It's fun.