Jay Leno has revealed that laughter is the key to keeping the spark alive in his marriage to his wife, Mavis, after her dementia diagnosis.

Leno says he loves going to car shows all over the U.S., and he’s always happy to chat with people about his favorite subject: Cars and motorcycles.

Jennifer Lopez performs during the Sundance Film Festival, plus Pamela Anderson, Carla Bruni, Tyla and more. From Los Angeles ...