Not in Kansas anymore...

So I just ran to the nearby Mac's for some stamps, and as I'm paying the bill 'Dust in the Wind' starts up on the radio.  One of the clerks, organizing plastic coffee mugs, abruptly breaks into song, warbling off key with an impressive amount of confidence.  A couple of bars later and  her older co-worker joins in the melody with an equally questionable grasp on the concept of pitch.  And as I walked out, the third clerk, behind the counter, completed the harmony.  The only thing that could've made this bizarre interlude better would've been a guest appearance by jazz hands.