Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Mine did this all the time at the beginning of every tune !!!!!

I had 2 widget open :

1) Sing that tune - Lyric finder !!!
2) The official itune widget !

I removed sing that tune and disabled the official itunes widget and

PROBLEM SOLVED !!!

The sing that tune widget got lyrics and put them into itunes causing it to skip for a split second about 3-4 seconds into every new song played, once the lyrics where loaded for each tune it wouldn't skip on that particular song again but it got that annoying I just got rid of the widgets !
 
heres the problem

ok i saw this question while searching google because the same thing was happening to my itunes. im not sure if you've solved this already but i registered on this site just to post the answer cause i know how much it would suck to lose your music.. you have malware on your computer. you should download malwarebytes http://www.malwarebytes.org/ the free version is fine. then do a scan of your computer. remove the infected files and restart your computer. itunes worked for me after that, although i have no idea what kind of malware messes with itunes...... it could be something completely different for you though... i hope it works for you too! :)
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.