The whistle tone became famous as the default SMS and notification sound on Samsung Galaxy phones in the early 2010s, especially the Galaxy S3 and S4 era. Its cheerful two note chirp was heard everywhere, which made it perfect meme material once short form video took off. Creators began dropping it over unrelated clips to pretend a text had just arrived, turning a normal phone alert into a joke cue. It remains popular for its instant nostalgia and readability even at low volume.