Hip-hop mogul Damon Dash is being sued for $15m (£8.1m) after allegedly raping an American former model at a party in Brazil on New Year's Day 2003.
Dash's spokesperson has called the allegations "ludicrous"
Kirstie Thompson, 32, has filed a civil lawsuit in New York alleging Dash, 32 - who produced Victoria Beckham's recent UK single This Groove - attacked her.
Dash's spokeswoman Amanda Silverman said the allegations were "ludicrous".
"Any such allegations are baseless and untrue," she said. "Damon has not been charged with anything."
Dash co-founded the Roc-A-Fella hip-hop record label in 1995 with rapper Jay-Z.
Ms Thompson, now a Manhattan fashion house concierge, is seeking compensation for emotional and physical damage.
Dash produced Victoria Beckham's latest UK single
Her lawsuit says Dash's actions were "outrageous and intentional and done with malice", adding he "was aware [Thompson] would not consent to sexual intercourse".
Ms Thompson says Dash forced himself upon her after the pair attended a glamorous party on a Brazilian island on New Year's Eve 2002.
She had eight glasses of champagne and a half tablet of ecstasy, she says, and turned Dash down when he propositioned her during the party.
A friend then took him to her hotel room at 0830 local time the next morning and he assaulted her, causing her to scream and pass out, she says.
Her lawyer Raoul Felder told BBC News Online that she went to police and hospital in Brazil, but Dash was not arrested.
"I don't want to be unkind, but could you imagine the interest of local Brazilian police on some island following what some Americans are doing to each other?" he said.
"They even lost her records for a period of time. These were Americans who were there for a very short period of time, and then everybody went their separate ways."
He said Ms Thompson was going through the US civil courts because, for a criminal trial, Dash would have needed to have been charged in Brazil.