After 10 years away Rock in Rio, the world's largest music festival, was back to Brazil. But in addition to the music, the festival also wanted to be recognised for its work in favour of social causes. But how? We invited the public to donate new, used, or even damaged musical instruments. Thanks to a partnership with the Brazilian Post Office, people from all over the country could send their instruments by express order, free of charge.

Thanks to a partnership with the Brazilian Post Office, people from all over the country could send their instruments by express order, free of charge.

In 2011, Rock in Rio collected 2,200 instruments for donation. The campaign won support from media, and singers collaborated by donating autographed musical instruments to be auctioned. Thanks to the campaign, 10 music rooms were built in public schools, and most importantly thousands of young people have taken an initiative to build a better world.