Above is a video of a live performance by the late great Israel Kamakawiwo'ole that is guaranteed to induce chills, first when Brother Iz launches into singing after his spoken-word introduction, and then when his former bandmates from the Makaha Sons of Ni'ihau join him on stage to sing.

This performance is from the prestigious Na Hoku Hanohano Hawaiian Music Awards from May of 1996, only a year before the passing of Brother Iz.

The song is "Kaleohano," written by his brother-in-law, Moon Kauakahi, who can be seen singing to the right of Iz (Iz's right, or to the left as you look at the video) when he and the other Makaha Sons come up out of the audience to join in the song (which takes place at about 4:18 in the video, and the camera focuses in on Moon Kauakahi at about 4:57 in this video).  His birthday is coming up on July 30.

Here is a reprint of an article describing the show-stopping performance at that 19th annual Na Hoku Hanohano awards, with Brother Iz describing it from his own perspective:
Yeah, that wasn't planned. I didn't know what was going on. I just had my eyes closed. I heard Moon's voice and I opened my eyes and looked to the side and there he was. That was cool, really really cool, awesome.
I was crying, yeah, I was crying. There was a lotta emotion, a lotta feeling of love, an awesome feeling of aloha. That was the perfect example, the epitome, of aloha spirit. Everybody in the state talks about aloha spirit; that was the perfect display. It's all about love, it's all about being Hawaiian, and just love, man, family. 
In the introduction to the song, before he begins to sing, Brother Iz confesses his conviction that the soul lives on beyond the body, saying:
It's only a facade, brah.  It's a thin curtain.  It's only temporary.  Us guys is forever.