Katharine McPhee Was a Clue on 'Jeopardy!' & Even She Didn't Know the Correct Response!

Katharine McPhee oozes California style in beige knit sweater and torn jeans as she runs errands

Katharine McPhee covers up in a stylish coat with her hair pulled back

Katharine McPhee puts on a stylish dsplay as she enjoys quality time with David Foster and son