Caneta Azul became a major Brazilian internet hit in 2019 after singer Manoel Gomes performed the song in a simple video that spread widely across social platforms and messaging apps. The chorus, or refrão, is the part most people recognize and quote. Its viral reach came from the contrast between the earnest performance and the unusually memorable hook. Even years later, creators still use this excerpt in memes, remixes and reaction posts because the refrain is easy to identify within seconds.