Part of the problem. esp with weddings, is that people just don't know what is available. We give them a tape of alternative suggestions that are within our genre and that we know and perform well. Most of the time they are happy to choose one of these. If they insist that they must have the dreaded song (I personally HATE!!!! the "Irish Wedding Song" and "My Heart will go on" YUCK!) We inform them that we charge an extra fee for having to learn a new piece especially for them. Then, it's your call. If they want to pay and the song is not racist, obscene, or otherwise against your morals, just badly written, well, keep the customer happy and do the song really well.