"It doesn't make sense to a lot of people, but it does to us," Katharine McPhee, 34, tells PEOPLE of her romance with David Foster, 68, in this week's issue. Janine Rubenstein is Editor-at-Large ...

Katharine McPhee Shares Throwback Pregnancy Photo as She Gets Ready for Son Rennie's 4th Birthday: 'Where Does the Time Go?' Katharine McPhee Has Smash Reunion with 'Beautiful Friend' Megan Hilty ...

Katharine McPhee and David Foster's adorable son Rennie ... Any guesses? Well, in a recent interview with People, they were ...

Russell Brand's awkward interaction with Katharine McPhee on Jimmy Fallon resurfaces ...