Tralalero Tralala emerged in early 2025 as part of the Italian brainrot wave, a series of AI-generated videos pairing absurd animal characters with playful Italian narration. The three-legged shark wearing sneakers became one of the wave's most recognisable figures, and its chant spread through TikTok edits, remixes and short-form compilations. As a viral meme, it stayed popular because the name is easy to repeat, instantly recognisable and flexible enough to fit almost any chaotic or silly clip.