Best/most touching "Tribute Song" to a deceased musician?

Shine On You Crazy Diamond to Syd Barrett

http://www.youtube.com/watch?v=TdAEmX0OpMk

Tearjerker by RHCP to Kurt Cobain

http://www.youtube.com/watch?v=C1T5kJb0cyc

Yeah , RHCP did a wonderful tribute , glad you like it :)

Back In Black by AC/DC, which was written as a tribute to their former vocalist Bon Scott, who had died several months before. The lyrics were basically about the kind of person Bon had been, and that though they missed him, his spirit was still with them.

Back In Black

I hit the sack

It's been to long, I'm glad to be back

Yes I'm let loose

From the noose

That's kept me hanging around

Looking at the sky

Cause you're getting me high

Forget the hearse 'cause I'll never die

I've got nine lives

Cat's eyes

Abusing every one of them

And running wild

-From the first verse of Back In Black

Paul McCartney - Here Today (to John Lennon)

http://www.youtube.com/watch?v=FjwnWU6OsaI

George Harrison - All Those Years Ago (to John Lennon)

http://www.youtube.com/watch?v=85Smw33PKJA

The Righteous Brothers - Rock N Roll Heaven

http://www.youtube.com/watch?v=k2cijNKu9qc

Ronnie & Neil ~ Drive By Truckers (about Ronnie Van Zandt & Neil Young)

http://listen.grooveshark.com/#/search/songs/?quer...

If I Could Give All My Love -or- Richard Manuel Is Dead ~ Counting Crows

http://www.youtube.com/watch?v=MMEFV0fQybg&playnex...

Six Strings Down...Jimmie Vaughan

http://www.youtube.com/watch?v=pJ3c5dCrS_E

a song called Kurt Cobain by Wesley Willis

http://www.youtube.com/watch?v=w3Q5DPHpw7E

More about fading rock stars but -

Hey Hey, My My - Neil Young

http://www.youtube.com/watch?v=cMs3PCDM8Eg

Shooting Star - Bad Company

http://www.youtube.com/watch?v=4wlwOcCRGDg

"All Those Years Ago" - George Harrison (in tribute to John Lennon)

Live Forever-Oasis

The song isn't about one musician but various musicians who have died over the years

I like the OTHER tribute to Duane Allman: "Freewheelin" by BTO