《太平广记·卷二百零四·乐二》
第一个演唱流行歌曲的歌手是李可久。到了唐懿宗时代，连堂堂的一国之主的懿宗也喜欢流行歌曲。象《哭赵十》、《别赵十》这两支流行歌曲，皇帝佬官就非常爱听。
上命梨园弟子，约略调抚丝竹，遂促龟年以歌。
The first singer to sing popular songs was Li Kejiu. By the time of Emperor Yizong of the Tang Dynasty, even Emperor Yizong liked popular songs. The emperor loved popular songs like "Crying Zhao Shi" and "Farewell to Zhao Shi".