Klum takes her exuberant children Leni, 5, and Henry, 3, for playtime in an N.Y.C. park. Halle & Nahla, Lauren Conrad, Reese Witherspoon and more

RUBY TUESDAY

Sporting a signature red-lipped Rolling Stones T-shirt, a low-key Michelle Trachtenberg stays connected while strolling through New York's Meatpacking District on Tuesday.