Greetings--I am a new member as of today and will try not to waste your time of give offense. I have been searching for a music related word for years (even tried to invent my own with no success). I think there is a French equivilent for the word I seek. Help please.

Is there a word to describe the common condition of having a tune, song, melody, etc., go through ones mind forever (or seemingly forever). The tune is often the last thing I hear on the radio while driving to work, but they can come unbidden in the middle of the day. People think I am strange when they hear me humming "you better watch out; you better not cry; Santa..." in July. Thanks.