The Weather Girls are an American female duo whose best-known line-up comprised Martha Wash and Izora Armstead. Formed in 1976 in San Francisco, California, Wash and Armstead began their musical careers as Two Tons O' Fun, the female backup duo for disco singer Sylvester. After several years of singing background for Sylvester, the duo was signed in 1979 to Fantasy Records as Two Tons O' Fun. The duo changed their name to The Weather Girls and were launched into somewhat more mainstream recognition following the release of the single, "It's Raining Men", which became their first number-one song on the US Dance Chart and their biggest hit. Despite having several hit songs on the Dance Chart as Two Tons O' Fun and The Weather Girls, the duo never achieved a top 40 hit on the main US Hot 100 and ultimately disbanded in 1988 after the release of their self-titled fifth album The Weather Girls.
In 1991, Armstead reformed the duo with her daughter Dynelle Rhodes. Over the course of a decade, the Armstead and Rhodes released three albums: Double Tons of Fun, Think Big!, and Puttin' On the Hits.