Conversation so far:
When did Corey Taylor join Slipknot?
1997
What was Corey Taylor's first album with Slipknot?
Slipknot
Are there any other interesting aspects about Slipknot's first album with Corey Taylor besides the eponymous title?
Slipknot peaked number one on the Top Heatseekers chart.
What was Slipknot's second album?
Iowa.
How did the album Iowa fair?
Slipknot's second album—released on August 28, 2001—peaked at number three on the Billboard charts and at number one in the UK.
Did Slipknot have a 3rd album?
Yes. Vol. 3: (The Subliminal Verses).
Did Slipknot have any notable hits?
Before I Forget is a Grammy Award-winning song by American heavy metal band Slipknot.
Where did Slipknot's song Before I Forget rank?
It was cited as AOL's top metal song of the decade.
What Slipknot album was Before I Forget from?
It was the third single from their 2004 album Vol. 3: (The Subliminal Verses).
Did Slipknot have any other hits besides Before I Forget?
Left Behind is a song by American heavy metal band Slipknot. The single was nominated for the Grammy Award for Best Metal Performance in 2002.

Question: From what album?
Self-contained rewrite: What Slipknot album is the single Left Behind from?