Four men — including one with a history of fraud schemes and an ex-con on parole — were busted Wednesday in a multimillion-dollar plot to dupe investors into bankrolling concert tours by Rihanna, Bruno Mars and Janet Jackson, according to the feds.

The scam came to light in July, when a lawyer for the entertainment company that represents Rihanna told the FBI that defendant Kwasi Asare was allegedly trying to raise $19.5 million by offering a 22% return on investments in the singer’s 2018-19 tour.

After Rihanna’s reps confirmed that she hadn’t agreed to the tour or authorized Asare to solicit investors, an undercover agent arranged to meet Asare, according to a complaint filed in Central Islip federal court.

On Nov. 13, Asare — whose LinkedIn profile claims ties to Sean “Diddy” Combs, Ice Cube and Prince — allegedly sent the agent an email seeking a $4 million investment in a “one-off” concert by Mars being promoted by Rio Vista Universal, an entertainment company in Los Angeles with a website that says it’s “dedicated to providing quality content and services in publicity, technology and entertainment.”

During a meeting in Manhattan the next day, Asare told the agent that Rio Vista exec Mark Lamica was “the man” and that another Rio Vista exec, James Ganiere, had “the artist and venue locked up” as long as Ganiere raised the money needed to put on the show, court papers say.

FBI agents later interviewed Mars’ manager and business partner, who both denied that Mars knew Asare or had agreed — or even been asked — to perform the purported March 2 concert at Petco Park in San Diego.

Three months later, Asare again emailed the agent, seeking $20 million for a concert tour by Janet Jackson, with a “GUARANTEED/INSURED Return of 10% per date and 32% Return over 16 dates or $6.4mm versus $20mm investment,” court papers say.

During a subsequent Feb. 20 conference call, Ganiere told the agent that Lamica had met with Jackson, who confirmed the tour “and discussed having the Jackson 5 open for her,” court papers say.

The following week, the agent took part in another conference call during which Lamica allegedly promised him a 35% return, and the agent later wired a $25,000 down payment to a bank account in the name of Untouchable Management Group.

On April 7, the agent met Asare, Lamica, Ganiere and another Rio Vista exec, Kevin Carriker, in Las Vegas, where he signed the contract and agreed to wire nearly $2 million by April 15.

One day before the deadline, the agent called Lamica, who allegedly “pressured” the agent to wire him $200,000 and claimed “that he personally spoke to Janet Jackson and that she personally committed to him that she would do the 2019 JJ Concert Tour.”

But FBI agents spoke with both Jackson and her brother and manager, Randy Jackson, who denied having any business dealings with the four men.

The complaint against them notes that Lamica “has a long history of defrauding investors in similar schemes,” including one scammed that $1.6 million from the Canadian city of Summerside for a purported “Michael Jackson Tribute Show” featuring performances by Beyonce and Usher.

The complaint also says that Carriker was convicted of grand larceny in California for stealing gold and silver collectible coins from “several elderly victims” and is on parole after serving 13 years in prison for embezzling $75,000 from his employer, whom he also robbed and stabbed.

All four defendants were arrested in California and charged with wire fraud conspiracy.

No one immediately returned a phone call to Rio Vista, which is headquartered in a “virtual office” building in Beverly Hills.