weird iTunes thing... random playlist..creepy songs...?

so...im going to try and explain this as best i can. So last night i was listening to itunes while working on the computer. all of the sudden itunes pops up and its on a playlist that isn't on my computer (it was titled "remote" ) and its plays a song; haunting by evanescence (sp). when i clicked out of the playlist it was deleted. i went on about my business and it popped back up... this time it was the same titled playlist but with different songs and it was playing "watching you" (i don't remember te artist).... it continued to do this every couple minutes (even after re-booting my computer) playing various songs (paranoid, all shook up.... creepy titled songs...) so i totally exited out of itunes.... and today i got on the computer and its doing it again.the first song was "hello again" and then it was "i want blood" and just a second ago it was " hunt you down"... what the heck is doing this?? could someone have hacked into my computer somehow and done this? its getting really annoying and rather creepy. has anyone had this happen before? i have a new computer and new virus software... but i just want to know your ideas about whats going on.... thanks :)

<3 lindsay