London, Sept.19: Chelsea football stars, Didier Drogba and Michael Essien have added their "distinctive voices" to the rap song Skin, which exposes the difficulties of living with racism.
The song will be released to coincide with Kick Racism Out Of Football Week next month.
The Blues boys' recordings for the tune - by Wills And The Willing - feature in a Chelsea "soccumentary" called Blue Revolution released this week.
Drogba, 29, tells us: "Racism is something very difficult to live with.
All proceeds from sales of the single go to Chelsea's official UK charity CLIC Sargent.
And Wills And The Willing will perform Skin at the Royal Albert Hall on Sunday, September 23, at a charity function in aid of Africa.