I usually get commercial jingles stuck in my head (Like the Merci chocolates jingle... oh god...) or Zelda tunes. So as long as it isn't a jingle, it's all good. XD
Its always the annoying ones. Or the ones I don't like. Like right now I have a Miley Cirus song stuck in my head. >.< I want that bimbo gone out of my life!
well for me its mostly good songs like dio or dragonforce but one time i had i want out stuck in my head and it kept me up till like 3 in the morning and i had best friends brother stuck in my head and it gave me a headache but if i do get a song stuck in my head i can just listen to my mp3 and get it out