Wizard of Oz Soundtrack (1939)

The original soundtrack wasn't actually released as an album until the 1950s. Today, it's a valuable enough commodity that it has been re-mastered and re-released digitally for contemporary audiences.
Judy at Carnegie Hall (1961)

This live Garland album is her most beloved and notorious, capturing the singer at her best—over 20 years into her rocky career.
Rufus Does Judy at Carnegie Hall (2007)

Over 40 years after the fact, gay singer Rufus Wainwright undertook to imitate Judy Garland's entire Carnegie Hall performance—in a Carnegie Hall performance of his own. Perhaps surprisingly, the show was a huge success despite some opposition from diehard Garland fans—to be expected in any attempt to re-create a legend.