Here's a great performance of "While My Guitar Gently Weeps" from the Concert for George (held on November 29, 2002, "a year from the day" that George Harrison died). And what a great concert it was! You should get the DVD and watch the whole thing. Doing a little research, I learned that Eric Clapton did the guitar solo for the original recording on the Beatles eponymous double album ("The White Album"). According to biographer Mark Lewisohn, George Harrison later said of that recording session that in addition to providing them with an excellent guitar solo, Clapton also had a positive effect on the band. His presence "made them all try a bit harder, they were all on their best behaviour." (The Beatles Recording Sessions, Harmony Books, 1988).
In addition to Ringo Star and Paul McCartney, watch for George's son, Dhani, playing with the band.