Eu sou barítono is a short Portuguese voice clip circulating among meme creators, built around a single confident line about being a baritone. The joke lands because of the contrast between the boastful claim and the speaker's genuinely deep delivery, making it a favorite for singing and voice-themed edits. It spreads mainly through short-form video, where creators use it as a mock verdict on someone's low voice. Its appeal comes from universal timing rather than a specific show or event, which keeps it reusable across languages.