Ethan Hawke taking his dog for a walk ... Ashley Olsen leaving her apartment in the Village ... Whitney Port going for a stroll downtown ... Calvin Klein crossing the street ... Michelle Williams carrying daughter Matilda and a cup of coffee ... Regis Philbin and Kelly Ripa filming a segment outside ... Liv Tyler peeking out of the front door of her apartment ... Katie Lee Joel heading into the Hearst building for a luncheon ... Tyra Banks leaving the same luncheon a little while later ... Joshua Jackson shooting scenes for his new show Fringe in Queens ... Kiefer Sutherland walking with a friend through the West Village ... Dita Von Teese making her way into Marc Anthony's party at the Bowery Hotel, around the same time Kimora Lee Simmons and Djimon Hounson showed up ... Celine Dion performing at Madison Square Garden ... Mary-Kate Olsen covering her face while walking downtown late at night ... and Lindsay Lohan and Samantha Ronson leaving a dinner downtown.