I had another look at the wonderful Kamusi project. On its main page there is a video of many Kenyan artists singing, imploring their fellow Kenyans for peace. The song, it is in Swahili, can be found in many other places like the djfresh.org, youtube as well.
In translations the title "Wakenya Pamoja" means "Kenyans together". Have a listen, if only to listen how diverse the Kenyan music is. It is a great song.