honestly right this moment i cant remember the lyrics, but if its the one im thinking of, i fell in love with it too! The ad im talking about was a series of short clips of the casts of each show just sitting around on their sets really...not acting if that makes sense. And i think the promo mentioned somehting about getting to see old friends again and making new ones (ie 'good morn miami')
anyways, if that sounds like what youre looking for, its by an artist (or group?) named Titiyo and its called 'come along' i think.
oh! i remember the lyrics now.
'Come along now
come along with me,
come along now
come along and you will see
what its like to be free'
hope that helps! oh, and i found it easily on kazaa.