What's the name of this song?

It's clical and usually played on a violin. I ALWAYS hear this song and I want to know what it's called! It goes something like: Dum da da dum da da dum dee dee dee dee dee dee dum da da dum da da dum dee dee dee dee dee dee...and then it repeats over and over again. LOL, sorry if this is a stupid question. It's just really getting on my nerves how much I hear this song and not knowing what it is!