Surely the hordes of music fans, pop stars and actors seen making the gesture aren't all ... John Lennon making a hand sign ...

Devil horns, the American Sign Language gesture ... just filed an application for trademark ownership of his iconic hand gesture. He does it in most pictures but does he own it?

An curved arrow pointing right. Many hand gestures in the US are pretty universal. The peace sign, thumbs up, and "devil horns" aren't likely to earn you any strange looks in the States ...