I'm giving this a three.5 because of the memes, but the music is really that good to be honest. It's amazing, but at 00:39 it's basically just a bunch of "We Are Number One! Hey!"s repeated with a higher pitch every time. At 00:51 this is when the proper music starts kicking in. I actually like this part. Before anything, it's like a 30% bad.
Final review: 5/5 for the memes, 3.5/5 for the song.