My mother used to sing old German songs to us, and my father sang old spanish hymns, so my boys get a healthy multilingual concert in the evenings. I just love singing to them, and, like many others have mentioned, continue to sing to them long after they're asleep.

Their Favorites: Stille Nacht (Silent Night), You are my Sunshine (Wife does the melody, I take the harmony line), Des Colores ( a traditional Mexican song), Man on the Flying Trapeze, everything from "The Music Man", and some traditional old hymns (Walk to the Garden, Old Rugged Cross, How Great Thou Art).

there is no greater gift you can give your kids/grandkids/anykids than the gift of spending time singing to them. God bless you all!