Every once in a while, we feel the need to channel Page Six. We hear that Sarah Jessica Parker will be celebrating the big 4-0 at the Plaza on Saturday night. (Her birthday is tomorrow, but she’s apparently saving the party for the next night). So, if you feel like cheering up Carrie as she enters middle age while savoring one of the last nights at the legendary hotel before it closes on April 30 (and undergoes its transformation into a shopping mall/condo complex), then slip on your high heels, cross those picket lines and get ready to party like it’s 1999! It’s the end of an era, people!