Well, DUH!!! Of course you did. guitars, basses, whatever. Even when they bring their own wired mic it is usually some sort of $49 "special".
Scott
The real kicker is then when they complain about their wireless cutting out, fizzing, spitting, ect.
Some time ago I had a guy that did historical presentations that carried his own wireless system with a Countryman mic, can't remember what the crap wireless system was. He also had a person who was a prompter using a walkie talkie to read lines to him that he listened to with an ear bud.
Sound check was quick but went well enough however when the presentation started we realized he had a prompter reading some lines to him guess what walked all over the top of his wireless!!!
The prompter was no where around or even known about during soundcheck, his system what ever it was was fixed frequency, he would not use my wireless system and to top it off afterwards they said they had been getting interference on their mic lately!!!!
The prompter was no where near the receiver, funny thing was you could make out enough of the prompters voice to know what was coming up next.
I'm going to say all these years later he is still using the same wireless system, same walkie talkies and still hasn't gotten a replacement EQ cap and windscreen on his Countryman mic.