"High-fashion" and "onesie" don't typically go together in a sentence. While we may or may not own a Snuggie of our own, it's certainly not anything to write home about -- or to post on Twitter. But if you're Miley Cyrus, onesies are straight-up couture. The 20-year-old starlet rocked Chanel in her TwitPic with the caption: "Don't hate. Appreciate. #Chanel1Z." OK, Miley, we don't hate it, but we're not sure that the pricey piece is anything more than glorified jammies. Thanks, but we'll stick to our Snuggie the next time we need to stay warm or get our "twerk" on.