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:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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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.