I'm going with "Rattle & Hum" by U2.
Covers of the Beatles and Bob Dylan. Dylan on another track. BB King showing off the pipes. A taste of Hendrix. A homage to Martin Luther King Jr.
A mixed studio/live album, with a mix of musical styles and voices, that just "works".
Oh, and it's worth noting that coming off the success of Joshua Tree, the album DIDN'T include what was just about the biggest son on the planet "With or Without You".
Ah, good fun.
