Lopez takes a chic stroll in the French city. Plus: Mariah & Nick, Tom & Katie and Taylor Momsen

IT'S A WALK OFF!

Naomi Campbell – who recently revealed her battle with infertility – shares the catwalk Wednesday with 18-year-old American model Chanel Iman. The two hit the runway at Campbell's annual Fashion for Relief show, this year benefiting the White Ribbon Alliance (which aids pregnant women and newborns) at London's Natural History Museum.