Send my love to your new lover
Treat her better
We gotta let go of all of our clothes*
We both know we ain't kids no more

The story:

My coworker/friend and I were carpooling to a conference and
on the way there the song kept coming on every radio station
and we kept belting it out and it became our song of the trip.
On the way home he turns to me and asks what are they
"letting go of"? I replied that I thought it was ghosts what did
he think? And he said clothes to which I replied I'm pretty sure
it's ghosts but maybe we need to google that because we've
literally been singing something different. As he's googling I
just keep laughing because I'm picturing Ex's literally getting
ridding of all of their clothes.