Now that’s one headline we never thought we would write: Coldplay, Leonardo DiCaprio, cargo shorts and Santa Rosa all in one. But stranger things have happened when celebrities descend on an otherwise (pretty) ordinary town.

On Saturday, September 15, Leonardo DiCaprio’s foundation hosted a benefit art auction at Santa Rosa’s Jackson Park Ranch. Coldplay singer Chris Martin performed at the event, which benefited environmental causes. But before the band came on stage, Martin took the opportunity to perform a solo number he had written for the occasion. It was an ode to something slightly odd: not the preservation of the environment or endangered species, but to Leo DiCaprio’s love of cargo shorts.

“I studied him very closely,” Martin sang, accompanied by his guitar, “Personally, and on the Daily Mail website … for about five or six years. What became clear to me was his unbelievable service, his commitment to the business of cargo shorts. This is a guy who said ‘I’m going to save these shorts from extinction, they should’ve gone out about 25 years ago.’”

The moment was captured on video by an audience member, and has now gone viral. View videos here.