A woman who is suing Usher for failing to tell her he had herpes before they allegedly had sex had earlier proclaimed on social media that she needed money.

Quantasia Sharpton, a 21-year-old mother of three, spoke out about the new lawsuit against the singer at a press conference in New York on Monday.

Sharpton is one of three alleged victims - two women and a man - suing Usher but she is the only one identified by name in the lawsuit. 

The lawsuit, obtained by DailyMail.com, claims Usher had vaginal sex with at least one of the two women and he had 'unprotected sex' with the man.

The three plaintiffs claim they had unprotected sex, or oral sex, with Usher because he is a 'revered celebrity in their eyes who they believed could be loved and trusted'. They all allege that Usher failed to inform them he had herpes, an incurable sexually-transmitted disease, before engaging in the alleged sexual encounters. The lawsuit makes note of recent news reports that Usher admitted in court documents in 2012 to having the disease and that he settled a $20million herpes lawsuit several years ago with a woman. 

They claim Usher has never publicly denied having herpes, or made an effort to contact them to confirm or deny the reports, the lawsuit states.  

The lawsuit states the alleged victims have suffered severe emotional distress, birthing complications, stress, depression and anxiety about contracting or being exposed to herpes. 

Quantasia said she had always loved Usher's 'artistry and music,' so her friends took her to a concert of his to celebrate her 19th birthday a few years ago. 

She says she was selected from the crowd to go backstage before the show and meet Usher - real name Usher Raymond - because of the birthday crown she was wearing. 

Later, she says a security guard came up to her and asked for her number because Usher was 'interested in her'. 

After the show, she says she got a call from a blocked number and it was Usher, asking her what hotel she was staying in and the room number. About an hour later, Sharpton says Usher arrived at her hotel and they had 'sexual contact'. But after he left, she 'never heard from him again'. 

Sharpton said she was shocked last month to learn that Usher possibly has herpes.

When Sharpton read about that case, she contacted Lisa Bloom to see what her legal options were, even though she tested negative for the virus when she had a child last year.

While Sharpton doesn't have the disease, at least one of the three clients that Bloom is representing say they caught the disease, and blame Usher for it.