Frankie Valli
Ok, so I'm showing my true colors now (as if Neil Diamond wasn't bad enough). I admit I love this song. I think it's due mainly to its use in The Deer Hunter, one of my all time favorite movie scenes, as well as little known version by the late Heath Ledger in a cute scene from "10 Things I Hate About You."
I also like that Steven knows almost all the words, and will sometimes sing it acapella. The lyrics sound a little weird coming from a 4 year old, but its still pretty darn cute.