This time of year always puts us in mind of turning leaves, sweaters, and, of course, celebrities. (Okay, fine, that last one has nothing to do with the time of year.) So let's get to it. This month we have everyone from J.Lo to Mary J. (Blige), Mary-Louise Parker to Parker Posey, Gwyneth Paltrow to your pal Paul Rudd, plus Childish Gambino, Lil B, and Demi Lovato. Throw on your Shetland wool roll-neck and take a look.