Just found these guys through Spotify Discover weekly and I can't stop listening to them. The Northern Boys (real names Norman Pain, and Patrick Karneigh) are a rap duo of two elderly British men, with backup dancer known only as Kevin. They have surprisingly smooth flow and excellent lyrical skill.
Definitely NSFW lyrics and themes to the songs, but that makes it all the better. Their music videos are great too. It's awesome to see and hear people just having fun with music and something they love.