If you haven't heard it yet, you will. Meghan Trainor's "All About That Bass" is one of the best tracks we've heard in a while, because it's super catchy and has an important message: love yourself!

In Meghan's pastel-colored Barbie-free wonderland of a music video, she sings about loving your body and all of its parts, and not letting the haters get to you. Especially if they're skinny. You go, girl.

The 20-year-old Massachusetts native has been around writing songs for a while, but this is her first big break: "All About That Bass" hit #2 on the Billboard charts this week. It's been at the head of the iTunes charts and Spotify streaming lists for a while now, too. Meghan's doing it big.

Clearly she's listening to her own advice too, because Meghan's cute as heck in all of her brightly-colored outfits. And that dancing dude moves like he's never heard a hater in his life.

Of course it helps that the 50's-inspired song is ridiculously catchy and is gonna be stuck in your head the rest of the day now that you've heard it. And now that you're all about that bass too, share it with a friend!