Ivanka Trump Signs Her New Book & Shows Off Her Ring

Celine Dion arriving at her hotel in NYC

George Cooney arriving at his hotel in London

Mickey Rourke has lunch alone in NYC

Eva Longoria promotes American Latino museum on Capitol Hill

John Mayer gets a haircut at Sally Hershberger salon in NYC

Miranda Kerr out shopping in Sydney

Hilary Duff juggles her book, a can of diet Coke and a bottle of water while walking to the Gossip Girl set, filming in Downtown Manhattan