"This is my second meme mashup. This time the memes gathered at the intro scene for The Living Tombstone's "It's Been So Long" song, otherwise colloquially known as "The Man Behind the Slaughter." The memes from left to right:

Back row: Joe Swanson, Sans the Skeleton, Blue, Pickle Rick, LoFi Study Girl, Giorno Giovanna

Front row: Gibus Engineer, Rick Astley, Billie Eilish, Lil Nas X, PewDiePie, Coffin Dace Crew, Ricardo

Hidden: Lucky Luciano (it's pretty easy to find him tbh)

Sans was obtained from wesambjusdem:
https://www.newgrounds.com/art/view/wesambjusdem/sans-fan-art"