"My Sweet Lord," George Harrison. My wife is "Sugar, Sugar," and I also love that song.
13: "Maneater," by Hall & Oates for me, "Jack & Diane," by John Cougar for my wife. I think I win that one, especially because that song for her is like "Sugar, Sugar" for Sarah (she's from rural Indiana).
How about 30, for us old farts?
Me: "Independent Women Part One," Destiny's Child. I don't even know that song. For my wife, "Heartbreaker" by Mariah Carey, featuring Jay-Z. I don't know that song either, but it's got Jay-Z in it, so she wins that one.