The corna (Italian for horns), also mano cornuta (horned hand) or simply the devil horns is a hand gesture with a vulgar meaning in Mediterranean countries and a variety of meanings and uses in other cultures. Its origins can be traced to Ancient Greece. It is realized by extending the index and little fingers while holding the middle and ring fingers down with the thumb. It is identical to the Karana mudra of Eastern religions. While the Hook 'em Horns sign used by fans of University of Texas athletics is visually similar, it is used in different context.
While some confuse the corna as a demonic sign relating to satanic music, some say it was seen on the 1969 cartoon figure of John Lennon, as seen on the original vinyl album cover of the Beatles 'Yellow Submarine',others say the figure was giving the deaf hand sign for love , which animators drew incorrectly, as it would seem to make more sense with their material at the time, and the fact the Beatles had little to do with this animated film.