Russell Crowe Helps Jimmy Fallon Sing a Semi-Profane Earth Day Song (VIDEO)

They're commemorating five years since the BP Deepwater Horizon oil spill

Photo: Douglas Gorenstein/NBC/Getty

Wednesday was Earth Day, and it was also a day that ended in “y,” which meant Jimmy Fallon was going to sing on The Tonight Show.

Fallon’s peg? The BP Deepwater Horizon oil spill five years ago, which killed eleven workers and created what NPR called “the nation’s worst offshore environmental catastrophe.”

Among the many side-effects of the spill were the so-called “tar balls” – blobs of weathered petroleum – that continue to wash up on beaches. Fallon’s original response to this was a composition called “Balls in Your Mouth,” which he reprised Wednesday, with Russell Crowe‘s help.

By now it’s no surprise that Crowe is quite the musician, having taken on the role of Javert in Les Misérables and the role of lead singer in his band 30 Odd Foot of Grunts.

Watch Crowe and Fallon take to the crowd like a pair of old-timey folk singers to inform the Tonight Show audience, “Don’t go swimming down in the South / unless you want tar balls in your mouth.”

As true today as when it was written.

Related: Helen Mirren and Jimmy Fallon are Hilarious on Helium

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