Applegate is a fan favorite outside The Late Show with David Letterman studio in New York City. Plus: Harrison & Calista, Nicole & Joel, Mary-Kate Olsen and more

GLOBAL AMBASSADOR

After screening his latest movie 17 Again in Australia, Zac Efron continues his international promotional duties – and gives a shout-out to Kanye West – after arriving Monday at Charles de Gaulle International Airport in Paris.