It is a shear pain to get off of mics, only use it if you feel like you need to buy new mics every show... which is some cases happens anyway. I still have nightmares about having that crap in my eyelashes from when I had to take makeup class. Don't use it unless all other options are gone.It is the most foul liquid that is routinely applied to humans.
Odds are they are hairsprayed on... but then again... spending a few hundred every few nights for a new mic if it gets destroyed is not a huge deal their... once again... if you want to use spirit gum... go for it... just don't expect your mics to come back clean and in good condition. You get a bit of that crap close the element and your mic is done for, no questions asked.It looked to me like on broadway they used some kind of glue to stick them on.
What kind of glue do they use, or do they just hide the tape really well with makeup?