I didn't even realize Crystal Light still existed because it's not the '80s and I'm not in an aerobics video, so it's surprising "American Boy" chanteuse Estelle's penned an ode to the low-calorie drink. The song's called "Star," but it doesn't earn one. If you want to feel like a "Star," though, you can go to the Crystal Lite-approved upumpitup.com, ...