A three-second commercial jingle for the Japanese salt company "Hakata Salt" has become the most popular song in karaoke in Japan. The jingle has been broadcast on television for about 40 years, and part of its popularity is attributed to its connection with the memories of generations of Japanese.

The song gained new momentum after being added to thousands of karaoke machines in 2025 through a contest organized by the company "Joy Sound". Since then, the challenge of achieving a perfect score in its performance has spread online, where the accuracy of singing is measured by comparing it to the original recording.