The tone comes from Chuckie and LMFAO's Let the Bass Kick in Miami Bitch, a high-energy club track that Portuguese phone users adopted as a distinctive text alert, often introduced with the words Tem uma mensagem, meaning you have a message. Shared through ringtone and soundboard communities in Portugal, including Lisbon and Porto, it spread because the familiar beat was far easier to notice than a standard beep. It remains popular today as a nostalgic, party-style notification for memes, edits and custom phone sounds.