Move over, "Fancy." You may not have heard of Meghan Trainor just yet, but we guarantee you'll know her name by heart once you listen to her super-catchy "All About That Bass". From the song's body-positive lyrics ("Every inch of you is perfect from the bottom to the top") to the fun, pastel video featuring guys and girls of all sizes, we can't get enough. You don't have to take our word for it: natural beauty champion Colbie Caillat recently tweeted that she's "obsessed with" the jam. Meghan's all about that bass—and we're all about this song. Check it out.