As you may or may not have noticed, Iggy Azalea took the stage at this weekend's Billboard Music Awards, and she was in the company of one very spunky, energetic brunette — the same brunette who was in the amazing Clueless-inspired music video for "Fancy." You might have found yourself wondering, "Who is this girl?" Or maybe, you already knew. Either way, we're here to tell you. Her name is Charli XCX, and she's young, vivacious, and totally poised to take the music world by storm. Keep scrolling to find out all the reasons to love her.