First of all, "Who Knows" is a flawless drop right out of the Indie Pop Bucket of Goodness. The catchy beat and irresistible chorus will be stuck in your head all day. So that's half of it.
For a full effect of the song, though, one must watch the music video.
It's so simple, yet brings the utmost joy to life. The basis? A large, insanely flexible gentleman (Jeffry Young) delicately and expertly rollerskating around town with no care in the world.
Take three minutes to have rollerskater-man light up your day. You won't be disappointed.