The Weather Girls were comprised of singers Martha Wash and Izora Armstead. Two heavy set black ladies who started in gospel and came together in the mid 70's as the backup singers to disco artist Sylvester. At that time they referred to themselves as Two Tons O' Fun. LMAO.
Here they are on backup to Sylvester's biggest hit song, "You Make Me Feel (Mighty Real)"
In 1982 the Weather Girls released their hit song "It's Raining Men". It was co-written by Canadian Paul Shaffer, he of Letterman sidekick fame.
In the 1990's Martha Wash went on to sing vocals for many dance/house acts including Black Box and C+C Music Factory. In fact she had to sue them to get credit as they took her vocals and represented as being the vocals of other better looking female singers. She also sang with house DJ Todd Terry alongside another power voice, Jocelyn Brown.
"Keep on Jumpin"
Her work earned her the moniker "The Queen of Club Land".