Planeta Alegria comes from a personal collection of funny Portuguese clips shared under the name Tuga Doidos, built from years of listening to radio pranks and recording the best moments. Rather than coming from a single famous show, it circulates as a short, shareable prank excerpt that Portuguese-speaking listeners recognise from radio-style apanhados, where an unsuspecting caller is caught off guard. Its popularity online rests on that familiar format and its short length, which makes it easy to drop into memes, reaction videos and chat jokes.