Movie star Leonardo DiCaprio testified in federal court Monday morning (April 3) as part of a trial involving international money laundering, bribery and a prominent rap artist.

Prakazrel “Pras” Michel — a founding member of the iconic 1990s hip-hop group the Fugees — is accused of funneling money from a fugitive Malaysian financer through straw donors to Barack Obama’s 2012 re-election campaign. Five years later, prosecutors say he tried to squelch an investigation into that same financer under former President Donald Trump’s administration.

At the heart of the case is Low Taek Jho, usually known as Jho Low. He is accused of masterminding an international money laundering and bribery scheme that stole billions from the Malaysian state investment fund known as 1MDB.

DiCaprio’s connection with the case comes from his yearslong relationship with Low, who was one of the primary financers of the movie The Wolf of Wall Street. Low is currently a fugitive but has maintained his innocence.

According to the charges, Michel essentially became a conduit for Low’s pilfered millions and his attempts to influence the U.S. government. Prosecutors allege that from June to November 2012, Low directed more than $21.6 million to be moved from foreign entities to Michel’s accounts in order to funnel money into the 2012 presidential election. They say Michel then paid about 20 straw donors and conduits so they could make the donations in their names and conceal where the money actually came from, according to the indictment.

DiCaprio testified that he met and befriended Low at a birthday party in Las Vegas in 2010. “I understood him to be a huge businessman with many different connections in Abu Dhabi and Malaysia,” he said.

The 48-year-old Oscar winner answered questions on the witness stand calmly — occasionally deferring to a fuzzy memory on some details and dates. In addition to his relationship with Low, DiCaprio said he had known the defendant Michel since sometime in the 1990s when they met backstage after a Fugees concert.

Low was known for hosting lavish star-studded parties and group vacations on his private jet to events like the World Cup in Brazil. DiCaprio recounted one particular junket that involved flying to Australia to celebrate New Year’s Eve, then flying to Las Vegas to celebrate a second time in one day. Michel was present on some of these trips, DiCaprio said.

Low became a regular contributor to DiCaprio’s charitable foundation, and eventually Low floated the idea of providing the primary financing for The Wolf of Wall Street.

DiCaprio said he had Low’s funding and legitimacy carefully vetted before entering into a business relationship.

“I was given the green light by my team as well as my studio,” he said. “He was a legitimate business person wanting to invest in the movie.”

DiCaprio also recalled a “casual conversation” with Low in which Low told him he intended to make a large contribution to Obama’s re-election campaign.

“It was a significant sum — something to the tune of $20-30 million,” he testified. “I said, ‘Wow that’s a lot of money!’”