Quoc: "Girls Just Want to Have Fun" is a song written by and first recorded in 1979 by American musician Robert Hazard. It is better known as a single by American singer Cyndi Lauper, whose version was released in 1983. It was the first major single released by Lauper as a solo artist and the lead single from her debut studio album She's So Unusual (1983). Lauper's version gained recognition as a feminist anthem and was promoted by a Grammy-winning music video. It has been covered, either as a studio recording or in a live performance, by over 30 other artists.

Answer this question based on the passage: who wrote girls just wanna have fun?
HW Chung: OK, some thoughts:
This is the relevant information: "Girls Just Want to Have Fun" is a song written by and first recorded in 1979 by American musician Robert Hazard. The answer is American musician Robert Hazard.