it's on. In 222, Xiaoke musical "Steady Happiness" was performed by Yisa: In the fifth issue of "Time Concert", Yisa reinterpreted "Steady Happiness" created by Xiaoke. The sense of telling was really strong, and every melody was touching. Yisa, born on October 23rd, 1983 in Chengdu, Sichuan Province, is a female pop singer in China.