Is this a problem with iTunes or did I just find my stolen iPod?

[tcv]

I selected a song to play on my computer, but iTunes said I was not authorized to play songs purchased with the account ___@_____.com.

That is not my email address or my account name, so I looked up the song information and apparently it was purchased by somebody else.

I don't know how a song purchased on another account would turn up on my account, but I'd like to know if this is a glitch in iTunes or if this guy has my iPod.

Has anybody had this happen to them before?

[Elbert C]

Have you or someone else transferred any music from from an iPod that isn't yours?
I've seen that with a few songs from a list that was transferred from my son's friends iPod to our iTunes Library.

[tcv]

Have you or someone else transferred any music from from an iPod that isn't yours?
I've seen that with a few songs from a list that was transferred from my son's friends iPod to our iTunes Library.

No, only one iPod has ever been synced to my mac.