Chained to the Rhythm
... that to promote her song "Chained to the Rhythm", Katy Perry left disco balls playing the track in various cities?
... that to promote her song "<b id="mwKA"><a href="./Chained_to_the_Rhythm" id="mwKQ" rel="mw:WikiLink" title="Chained to the Rhythm">Chained to the Rhythm</a></b>", <a href="./Katy_Perry" id="mwKg" rel="mw:WikiLink" title="Katy Perry">Katy Perry</a> left <a href="./Disco_ball" id="mwKw" rel="mw:WikiLink" title="Disco ball">disco balls</a> playing the track in various cities?