The polka-dot-wearing actress makes a cheerful arrival to the Late Show with David Letterman. Plus: Blake Lively, Gavin & Gwen, Nick Jonas and more

PEEK-A-BOO

Could Pink be poking fun at celebs and their accessory dogs? The cheeky singer gives her stuffed puppy a breath of fresh air – peeking out from her handbag – as she departs from London's Heathrow Airport on Monday.