This is Team Unicorn's 'All About That Base', a Star Wars themed parody of Meghan Trainor's 'All About that Bass'. The original song is about accepting your body for what it is and being comfortable in your own skin. I'm not really sure what the message is in the parody, but you can rest assured many Bothans died to bring us this information. I say good riddance. Hopefully a shit ton of Gungans went too.
Keep going for the video.
Thanks to VJAMES, who doesn't discriminate between bass and treble.