My first thought may be Beyond's Days of Our Lives. From August 3rd to 6th, 1990, Beyond lead singer Ka Kui Wong went to Papua New Guinea with Radio Television Hong Kong's "Love First Brigade" and witnessed the miserable life of the local people because of war and famine. After returning to Hongkong, Ka Kui Wong read the story of Mandela being trapped in prison in the newspaper, and his inner voice sounded. Ka Kui Wong thinks that Mandela's spiritual connotation is about struggle and hope, which coincides with Beyond's efforts in Hong Kong, so Ka Kui Wong wrote the song "Days of Our Lives", which is not only a tribute to Mandela, but also a portrayal of Ka Kui's glorious life. This song is also widely sung now, which is a classic.