what IS his name?

so I pick up the kids and we're heading home from Grandma and Grandpa's... not a whole lot of options when it comes to radio stations between here and there, so I flip around a lot... start singing along to James Taylor's "You've Got A Friend" (I've always liked this song, I remember it was in our elementary school music book, and I sang it to all my babies as a lullaby)... after a while, Anna says "what IS his name?" It took me a minute to figure out what she was talking about, then a-ha, he repeats "you just call out my name" many times in the song. Good question Anna, funny, but good.