The Yolngu people are from the top-end of Australia and are credited with creating the yidaki (didgeridoo).
Geoffrey Gurrumul Yunupingu is from the Yolngu mob and sings in Yolgnu language. He has recently appeared on the cover of Rolling Stone magazine. Gurrumul is the nephew of Mandawuy Yunupingu who sang in a mixture of English and “language” and is well-known for the song “Treaty” which was a political song over 20 years ago.
You can see a young Gurrumul playing keyboards in the Treaty video.
In case you are wondering, no, there is still no treaty.
Gurrumul can play four musical instruments (drums, keyboard, guitar, and yidaki) and was born blind.