Joseph Garrett, better known as Stampylonghead, Stampylongnose, Stampy Cat, or simply Stampy, is an English YouTuber, actor and author best known for his Minecraft video game commentaries as the character of Stampy Cat. He is well-known for his child-friendly demeanour and incorporating storytelling and education into the Let's Play format. In 2014, he was one of the ten most-watched YouTube channels in the world.

A Let's Play (LP) is a video documenting the playthrough of a video game, often including commentary and/or a camera view of the gamer's face. A Let's Play differs from a video game walkthrough or strategy guide by focusing on an individual's subjective experience with the game, often with humorous, irreverent, or critical commentary from the player, rather than being an objective source of information on how to progress through the game. While Let's Plays and live streaming of game playthroughs are related, Let's Plays tend to be curated experiences that include editing and narration, and can be scripted, while streaming is often an unedited experience performed on the fly.