Music may be a universal language, but it's nigh impossible to find a song with lyrics that apply to everyone. Sex is quite possibly the most common barrier. Many songs, (particularly ones about love or sex), are unambiguously addressed to a woman or a man, or specifically sung from a male or female perspective. While it's not uncommon for musicians to perform songs "in-character" rather than as themselves, some people can't accept an artist singing from the viewpoint of a different gender or sexual orientation than their own. So, when covering a song that was originally sung by a member of the opposite sex, what's a singer to do?