Ryan Phillippe parked his sports car and fed the meter before heading into a hair salon in LA yesterday. The actor held on to a bottle of Gatorade in an attempt to stay hydrated while temperatures soared on the West Coast. He kept a low profile in a baseball hat and sunglasses but showed off his tattoos and impressive arm muscles in a tight white tee. Ryan kept to tailored suits and stylish sweaters while promoting his latest films, The Bang Bang Club and The Lincoln Lawyer, but hopefully we'll see more of his sexy six-pack in the coming months. He's one of the many hot pops in the running for your Favorite Celebrity Dad in this year's PopSugar 100 — be sure to fill out your top 10 lists, share them on Facebook, and enter to win one of four luxury prizes!