Happy was released by Pharrell Williams as part of the Despicable Me 2 soundtrack in 2013 before becoming a global chart hit the following year, known for its upbeat pop sound and simple message about feeling good. The line 'I'm happy' became one of its most recognisable hooks, and short clips of it spread through memes, reaction videos and social edits as shorthand for genuine happiness. It remains popular because the vocal is instantly familiar, positive without needing context, and fits almost any light-hearted moment.