So, I don’t know where Rachel McAdams has been or what she’s been doing, but apparently it involves a fabulous new red dye job and this gorgeous Roksanda Ilincic gown. The actress had my absolute favorite red carpet look of the week, as she was totally flawless at the premiere of her new film About Time. Rihanna attended Carnival in her hometown of Barbados and shocked everyone (everyone who didn’t quite get that she was actually in appropriate attire for a West Indian Carnival), and Kerry Washington, Amanda Seyfried, and Miley Cyrus also had some fantastic looks this week. I also fell in lurve with Nicole Richie, as some of you may remember. Peep the gallery for more! Can you pick a favorite look of the week?