Home Gallery Interactive (video) WWF Canada Crowdsourced Earth Hour Anthem WWF Canada: Crowdsourced Earth Hour Anthem Help write the Earth Hour song. Published on Mar 15, 2012 Editor's Pick WWF Canada is asking people to contribute to a crowd-sourced Anthem in honor of Earth Hour, which takes place on 31st March. Fans can submit their own lyrics through WWF Canada's Facebook page until March 18th, when composer Andrew Huang will take the top ranked entries, plus ten of his personal favorites, and use them to write the final anthem. The song will be performed live at an Earth Hour rally in Toronto at 7.30pm on the 31st. John St. is the creative agency behind the effort, with French adapation work for Quebec by Headspace. Rate this Ad You must be registered to rate the ad. Please Login or Register Now About CreditsDateMar 15, 2012Agency:John St.Client:WWF Canada TagsFacebook charity CategoryCrowdsourcingSocial Media Latest Creativity News on Ad Age Why One Greek Agency Started Selling Its Own Sunglasses and Coffee Terence Neale Joins Park Pictures, Biscuit Adds Errol Morris McDonald's Delivers Long-Lost Sauce to Crazed 'Rick and Morty' Fans On Twitter Related work Home Hardware: Cat-Shaped Boxes Print John St. Home Hardware: Cat-Shaped Boxes John St. John St./Cieslok Media: Text and Drive Billboard John St.