Leonardo DiCaprio has mad flow.

The 39-year-old actor showed off his rapping skills at 1OAK in West Hollywood for club owner Richie Akiva's birthday celebration Thursday, and there was video to prove it.

Deejay D. Painter uploaded an Instagram video of DiCaprio rapping A Tribe Called Quest's "Scenario" with Jamie Foxx.

"Epic to say the least," Painter wrote. "@1OakLA was insane last night! He's wearing a hat and has a huge beard but trust me, it's Leo #leonardodicaprio #jamiefoxx #djMOS #1oakla #celebrities #hollywood #nightlife #atribecalledquest #beverlyhills @iamjamiefoxx"

DiCaprio still had his bushy beard, along with a slicked-back man bun, when he received an award three days later for his work on the environment.

Leonardo DiCaprio Named UN Messenger of Peace

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The "Titanic" star, who narrates the new climate-change documentary "Carbon," accepted the Clinton Global Citizen Award in New York Sunday.

Earlier in the day he marched alongside fellow celebrity environmental activists Edward Norton, Mark Ruffalo, Sting and Evangeline Lilly at the People's Climate Change march in Central Park.

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