Katharine McPhee, 39, Shares Surprising Secret to Success of Her Marriage to David Foster, 73

Katharine McPhee Shares Secret to Success of Marriage to David Foster

Katharine McPhee Sings 'Amazing Grace' for New Christmas Album with Husband David Foster - Listen Now!

Katharine McPhee and David Foster Discuss the Perks of Touring Together and New Holiday Album (Exclusive)