When I was growing up, my dad would always sing me "Leaving on a Jet Plane" by John Denver. I don't know why, but he always did! I became very fond of it.

Now, I sing "This is what Dreams are Made of" from the Lizzie McGuire movie to my LO. I know it is such a random song, but I just got it stuck in my head one night and now I sing it to her before every single bed time.