No not the wriggly kind. The musical maggot that keeps popping up in your head for no other reason that it can. Today it was "Que Reste t'il de Nos Amours?" What are yours?
not a heavy metal fan, but there is a video clip of sand painting I really like and this is one of the pieces on that clip - it's 'Nothing Else Matters' by Apocalyptica (original version - Metallica):
ha ha I love it.
Yesterday mine was"we plough the fields and scatter" … I think it was inspired by all the hay making going on around us!
Yesterday for no particular reason, it was an old ditty by Petulia Clark "Romeo…why am I so in love with you. " sung, badly, at the top of my voice driving through the vineyards in a pretty but ancient, Renault 4. France seems to have that effect. 
Meet On The Ledge by Fairport Convention which I heard blasting out of a tatty UK camper this morning and will not GGGGGGOOOOOOOOOO Awayyyyyyyyyyyyyyy!
Mine is whatever song I'm currently trying to learn on guitar. At the moment it's Elton John,s " I guess that's why they call it the blues". I've just been away for two weeks driving the length of GB to the Orkney Isles & I sung the damned song in my head all the way there & back!!
vic
Mine's a tune by The Don Ellis Orchestra called.....wait for it.................Pussy Wiggle Stomp!