We all know David Foster - the millionaire musician, producer, Grammy winner, and, as it happens, new "father figure" of one Prince Harry. Now that the (ex?) royal is living the expatriate life in Los Angeles with Meghan and little Archie, he's reportedly been feeling a little lost and lonely. But Foster's (current) wife, Katharine McPhee, just shared that her hubby, who's been helping the family with their move, "has a really, really beautiful relationship with Harry... they're like father and son." 70-year-old Foster, who has been married five times, is not only a serial husband to some famous names in Hollywood, but also a serial father, or "father figure," to a ton of It Kids in L.A., making Harry the spiritual sibling of...