Former Restaurant Worker Reveals Why Katharine McPhee Is "Vile"

Katharine McPhee, 39, plants a kiss on her husband David Foster, 73, as they enjoy Nobu lunch date

Katharine McPhee, 39, & David Foster, 73, Step Out With Son Rennie, 2, In Rare New Family Photo

Katharine McPhee, 39, steps out in LA with husband David Foster, 73, and their son Rennie, 2