When Sean Paul sang “we be burning” he was talking about global warming.

The Jamaican musician joins a growing cast of random celebrities at COP21 to perform the ballad “Love Song to Earth,” a collaboration with Paul McCartney, Natasha Bedingfield, Leona Lewis, and others. 

If you haven’t heard the song, which was first released when Pope Francis visited the U.S., here are a few standout lines: “Looking down from upon the moon/it’s a tiny blue marble” and “You’re no ordinary world/a diamond in the universe.”

While there, Paul snuck in time for a press conference, where he spoke about his interest in environmental issues.