Katharine McPhee doesn’t listen to music. The 38-year-old actress is married to record producer David Foster,72, and made her name as runner-up on ‘American Idol’ in 2006 before going on to star alongside Megan Hilty in musical drama series ‘Smash’ but explained that she and her husband only really like to play music when they are hosting dinner parties. She said: “People will always ask us at a dinner, ‘What music are you listening to right now?’ And he and I both just smile and look at each other and say, ‘We don’t really listen to music.’ We don’t listen to music in the car, though I do lov…