when song stuck on you head... does it annoy you?

Actually no. When a song, especially ones that I love so much, sticks in my head, I find it kinda ... pleasurably charged. It intrigues me to imagine how the piece goes. THEN, when I physically listen to the piece, that's when all the "charges" pay off. In contrast with you, I try limiting the amount of the listnening times if it's the piece that I really like, to extend the life of the pleasure.
Now it becomes annoying when a melody stuck in my head but i can't remember the title or where it comes from. It bugs me greatly. I used to spend two days (of course with eating and sleeping) to trace where that unknown melody in my head comes from.

Jam it back in, in the dark.