The Prince prepares to talk about his latest endeavor in London. Plus: Katy Perry, Gwyneth Paltrow, Vince Vaughn and more


Decked out in delicate Tiffany & Co. diamonds, Sarah Jessica Parker, Gwyneth Paltrow and Kate Hudson squeeze in a little girl talk during the jewelry line's Moët & Chandon-sponsored unveiling of the Blue Book collection at New York's Rockefeller Center Thursday night.