A Donald Trump "spokesman" who briefed reporters about the billionaire's exploits in the '80s and '90s -- when his love life was splashed all over the tabloids -- was actually Trump himself, according to a new report. 

The Washington Post unearthed a 1991 recording between a People magazine reporter and Trump spokesman “John Miller” -- whom the newspaper reports was none other than Trump, posing as his own PR guy. 

On NBC's "Today" show Friday, Trump denied being the voice on the phone. He said: "I don't know anything about it." 

But he apparently owned up to it at the time, describing the Miller call as a "joke gone awry," said the Post. 

In the recording, reporter Sue Carswell asks “Miller” about Trump’s 12-year marriage to Ivana Trump, his relationship with model Marla Maples and his rumored affairs with a number of high-profile celebrities.

Miller talked casually, at length and in surprising detail about Trump's relationships, his attachments with various celebrities, and his reasons for ending his relationship with Maples.

“He really didn’t want to make a commitment,” Miller said in the tape. “He’s coming out of a marriage, and he’s starting to do tremendously well financially.”

In the tape, Miller also tells Carswell about a meeting between Trump and singer Madonna, and tells her that while Madonna wanted to go out with him, “he’s got zero interest that night.”

The Post claims that John Miller was one of several alter-egos used by Trump, who had previously used the name “John Barron” as early as 1980 to talk to The New York Times. The Post reports that calls from Barron were so common it became a recurring joke at the New York tabloids.

The Associated Press contributed to this report.