Why Katharine McPhee and David Foster Aren't "Mourning" Getting Older

Katharine McPhee, 40, reveals how she really feels about her husband David Foster turning 75

Josh Groban, Michael Bublé & Other Highlights From David Foster’s 75th Birthday Bash at the Hollywood Bowl

Katharine McPhee Sweetly Kisses Son Rennie, 3, as She Celebrates Husband David Foster's 75th Birthday: 'My Whole World'