How does a campaign playing a song at a live event differ from, say, a high school basketball team playing a song at a live event or a professional basketball team doing the same?
In the rare event that a professional basketball team would play an entire song, you can bet that the franchise paid dearly for it.
High school? Falls into the who cares category. No one is going to accrue the negative publicity to be had by going after a high school. If a high school team did use a song, I’d wager that it would fall under the typical square foot schedule that a parks and rec department would have to fill out (and pay) if it held a dance. I doubt that even the most savvy of lawyers could convince a judge that a master use license was required.