In the 265th episode of ’20th Century Hit Song’ on KBS Joy, the theme was “Money Smells Strong~ ‘Billion!’ Sound of Hit Songs,” introducing mega hit songs that have generated enormous profits. MC Kim Hee-chul raised expectations by revealing that the songs were selected based on the singers disclosing their earnings before introducing the chart. Kim Hee-chul explained interesting behind-the-scenes stories related to the earnings of each song while introducing detailed information about them, providing insights into how these songs generated profits. Additionally, stories about the income and level of activity of singers during their prime years were also discussed through these songs, delving deeply into the significance they hold. Emotional responses and stories about these songs were conveyed through the remarks of Kim Hee-chul and other participants, commenting on the emotional connections these songs carry. Furthermore, an analysis of how these songs are influencing the Hallyu music market and their prospects for the future were also discussed, exploring the impact of these songs on the Hallyu music market and their potential moving forward in depth.