Sarah Jessica Parker, Cynthia Nixon and Kristin Davis represented Sex and the City 2 at ShoWest in Las Vegas on Friday. They showed off two different sets of outfits, rainbows of colour by day and sexy black numbers by night for the event's award show. Newly Grey's Anatomy-free Katherine Heigl was also there promoting her movie Killers with Ashton Kutcher, before being honoured as Female Star of the Year—though her acceptance speech took a turn for the worse when the strap on her dress broke! Jennifer Lopez struck a fierce pose of her own just a few weeks before The Back-Up Plan, which also stars our own Alex O'Loughlin, hits theatres stateside. Sex and the City 2's May release can't come soon enough, as far as we're concerned, and the ShoWest Awards gave us another peek into the thrilling fashion we can expect from the girls—even without Kim Cattrall, who's performing onstage in London. Vanessa Hudgens and Neil Patrick Harris also attended events together for their film Beastly.