Not really a fan of most of his genre of songs but you have to hand it to Prince for being able to jam out and to just be able to improvise on the spot to such a classic tune. RIP but he certainly was a talented performer and artist as well as a very prolific songwriter not only for himself but others as well.

Here is Prince, Tom Petty, Steve Winwood, Jeff Lynne and others perform "While My Guitar Gently Weeps" at the 2004 Hall of Fame Inductions.

3:28 in is where he starts

https://www.youtube.com/watch?v=6SFNW5F8K9Y