Now That Was Just Plain . . .

Ok, I'm at the Y . . . I remembered to bring everything this time . . . and I'm crankin away on the the elliptical machine, listenin to my 60's music on my ipod.  Next song comes up . . . I'm hearin 2 songs at once and neither was the song listed on the screen.  I clicked on the next song and everything was hunky dory again.  I never had that happen before.  A full moon thing?? Its tomorrow.  Or maybe just a freak unexplainable occurrence??  Anything like this ever happen to you??