Katharine McPhee, 37, and David Foster, 71, sure do clean up nice! The superstar couple was spotted rocking some fancy attire for a dinner date with friends at Mr. Chow in Beverly Hills, California on Tuesday, July 20. It was a kids-free night for Katharine and David, as they left their precious five-month-old son Rennie David Foster at home to enjoy their evening spent out. After all, every parent needs a night off every once and a while!