Caller, using first names, which I find annoying, said he was fundraising for "Oak Ridge Fire Fighter's Association".
Their Facebook page,
https://www.facebook.com/Oak-Ridge-Fire-Fighters-Association-182006697119/
gives their website as:
http://www.iaff1346.org/
The website
http://www.nonprofitfacts.com/TN/Internationa ... ssociation.html
says that contributions to this "Labor Organization" are NOT tax-deductible.
Basically they are selling concert tickets, whether you intend to go to the concert or not.