Details of pop superstar Taylor Swift’s sexual assault accusation against a radio host have been revealed in the singer’s lawsuit deposition.

Swift was conducting a meet and greet with fans after a 2013 concert in Denver when Robert “Jackson” Mueller allegedly groped her while posing for a photo.

The judge presiding over the case decided to keep the photo of the alleged incident sealed from the public, but denied the singer’s request for her deposition to also be kept private.

“Right as the moment came for us to pose for the photo, he took his hand and put it up my dress and grabbed onto my ass cheek and no matter how much I scooted over it was still there,” Swift said in the transcript, according to documents obtained by Billboard.

She said meet and greets were like “welcoming people into your home”. Photo: Getty

“It was completely intentional, I’ve never been so sure of anything in my life.

“I remember being frantic, distressed, feeling violated in a way I had never experienced before.”

Prior to Swift filing the suit against Mr Mueller, the radio host sued the singer for slander.

Mr Mueller claimed he had been unjustly fired from his job and banned from future Swift concerts, and alleged the real perpetrator of the assault was his former boss, Eddie Haskell.

Swift, who earlier this year donated $330,000 towards fellow popstar Kesha’s lawsuit against producer and alleged attacker Dr Luke, has promised to donate any damages from her suit towards charities for assault victims.

The singer is hoping her deposition will prevent the case from reaching the courtroom.