People finally realising who the face behind one of the most famous song intros in history is

A woman who sang one of the most iconic song intros of all time was pushed aside for 'more traditionally photogenic people'.

And after 33 years, viewers are only just realising where the vocals from the legendary 90s track came from.

Watch below:

She has been dubbed as 'The Most Famous Unknown Singer of the ’90s'.

Wash has featured on the likes of 1983's 'It's Raining Men', 1990s 'Ride on Time' and 1993s 'Give It to You'.

In the short clip, she sings the opening lines to 'Gonna Make You Sweat (Everybody Dance Now)' and viewers are shook.

"She looks literally exactly how I thought she would," one wrote, as another added: "I’m sorry but growing up in church hearing choir…I knew that voice belonged to a curvier lady period! IYKYK!!"

Someone else pointed out: "The downside of the music of the 80's. It was about flash and beauty and no talent. Models were the faces of the music, but none could sing their way out of a paper bag. It was terrible that she was subjected to this type of undue bias."

A fourth also wrote: "It was such bs that Martha Wash wasn’t featured in the videos! Believe me! We would not have cared about her weight!!"

While a fifth agreed: "They screwed her over big time Martha Walsh doesn't get enough credit for being the true voice behind a lot of 90s dance hits."

In a 2017 interview, Wash spoke about the famous track, and how she initially recorded her vocals as a demo song.

She said: "I remember thinking as I was singing the hook of the song that it was set so high, it was like I was reaching for the ceiling trying to hit the notes.

"'Damn, this is high,' I was thinking, basically screaming at the top of my lungs.

"I don't know what happened to the vocalist who they had originally in mind to actually sing the song or why they didn't use her version."