I came across the following article while poking around on the web earlier:
https://medium.com/illumination/10-odd-weird-and-kinky-facts-about-the-beatles-you-might-ignore-3c95258fd40aMost of these "unusual" facts are well known to every Beatles fan, but my curiousity was piqued when the author mentioned the first "devil horns" gesture appeared on the cover of the Yellow Submarine LP. So I did a search and found this:
https://faroutmagazine.co.uk/beatles-john-lennon-heavy-metal-horns/Sounds like John was indeed the first one to use this gesture, both via illustration on the LP cover and in a photo. I hadn't been aware of this. This isn't anything earth-shattering, but I found it interesting and thought folks here might, too. Unless everyone already knew about this except me.
My Lithuanian grandparents taught us the same gesture as a means of warding off evil spirits, but we held our "horns" horizontally, sort of pointing them at the person as if to shoo them away. (I haven't made this gesture in years, but maybe I can make it to my computer screen when dealing with frustrating authors.
)
Here are the images. Obviously everyone knows what the cover of Yellow Submarine looks like, but just for ease of access: