In the year 1985 someone filmed their cat playing the piano. Over two decades later that video would be uploaded to the internet. Cut to years after that and Keyboard Cat is now considered part of the historical record, in my opinion. He's internet meme royalty. Not all internet memes could be given that classification. Most will just float away in the wind as #memories. Let's face it, we've all forgotten about Harambe by now.
That's why out of all possible memes, Keyboard Cat is the most suitable for a tattoo. It has some significance in history... but dear God. Look at that tattoo. It looks like a rejected Muppets character, not Keyboard Cat. I'm not saying a photo-realistic tattoo of a cat is easy, but tattoos aren't supposed to be easy. You want to put in the extra effort so it doesn't look like Keyboard Cat's dead, stuffed body.