She may be the über-cool, trendsetting Brit livin' in Brooklyn now, but remember when she was the goofball we all wanted as our BFF back in her Popworld days? Well, she turns the big 3-0 today which so calls for a fist pump from an old-school T4 Alexa. Oh, and you may not have noticed yet, but her book's just dropped on ASOS too. Happy Birthday AC!