Today is Billy Preston's birthday.  Billy is maybe best remembered for his Electric Piano solo on Get Back in 1969.  He was playing keys for Little Richard when the Beatles were the opening act in 1962.  He was a big part of All Things Must Pass, and most of George's solo albums.  He played significant roles on great records by Joe Cocker, the Rolling Stones, Elton John, Eric Clapton, and Sly & the Family Stone among others.  He wrote the big hits You Are So Beautiful, Nothing From Nothing, Will It Go Round In Circles, and That's The Way God Planned It.  He influenced many many keyboard players, with his great artistry on piano, organ, clarinet, and synthesizers.

Here's a great example of the power of his playing:

https://www.youtube.com/watch?v=_tqM5GJ-tg0