Favorite Tribute Albums?

I think all of mine have already been mentioned. Willie Nelson’s latest album is sort of a tribute album, in that all the songs on it were written by Rodney Crowell. If you haven’t heard Rodney’s The Houston Kid album, rectify that oversight! In my opinion, it is not only a perfect album, but also the best album of this century (so far).

I don't have J.T. yet, but it should be on my list.  Steve Earle's tribute album/CD  for his son, Justin.

Where is My Mind: Pixies tribute 

For the Masses: Depeche Mode tribute 

Common Threads: Songs Of The Eagles

Endless Highway: The Music Of The Band

Enjoy Every Sandwich: The Songs Of Warren Zevon

+1 on: Come On Up To The House

Lots of great ones already listed ,

I add Joni Mitchell and John Fahey .