Wafalme (the Kings) live in Nairobi (Kenya) in the slum area of Mathare Valley. They are already hip-hop stars in Kenya and now they want to speak to kids all over the world. Dandora and Korogocho are two slums that totally lack trash collection, despite the fact that houses, shops and hotels from all of Nairobi dump roughly 1.5 tons of trash there every day. Research by the UNEP shows that residents of Mathare, Dandora and Korogocho are dying because of this dump. A total of 328 children and adolescents living and schooling there were examined. Half of the children tested had concentrations of lead in their blood exceeding internationally accepted levels.

Yet, the the youth of the slum say "trash is cash." Plastic, iron, paper, glass, and organic waste (80 percent of the total trash) can be recycled and become a source of income for thousands of the inhabitants. Some have invented work for themselves and are actually producing water-purification systems, compost, bio-fuel from coffee seeds and paperboard... all developed with self-constructed machines. The results are that recycling creates a source of income for a big number of people in a slum where joblessness and surplus trash cause major problems. The music video was written and developed by the young hip-hoppers themselves.