Lyrifog

When someone sings a well known song but sings all or part of the lyrics wrong and yet are convinced THEY are singing the "right" lyrics.

Example: They sing "mid evil woman" when singing the song "Evil Woman" by ELO.

I was driving along with this chick was suffering from Lyrifog. She sang the wrong lyrics to ELO's "Evil Woman" singing instead "MID Evil Woman". I corrected her but she insisted that I had it wrong not her.