Searching a melody

[ALEXANDRUMITACHE]

There is a videoclip with a very well known melody performed by several artists - icluding an African group - in several places, such as Africa, South America, USA, Russi, Italy... There is also a sax performer.
All the performers are singing/playing separately but practically together with earphones, listening each others.

Please remember me the title of the song and, if possible, send me a link to youtube.

Thanks,

Alex

[Milvus]

I think you are talking about the Playing for Change Project. The first video that became well known was Stand by Me. You can see it here https://www.youtube.com/watch?v=Us-TVg40ExM
You can see much more at their website http://www.playingforchange.com/