NAME OF THIS GWEN STEFANI SONG...?

Okay, I cant remember the lyrics but I remember that the video starts her being a little kid with her and her dad going to a circus....then shes actually in the circus and her dads in the audience watching. I think the songs about him dying?? It's a soft song with piano I think; not very rock-ish. I don't know & its driving me crazyyy! Any help?! :]