Conversation so far:
Was legacy an album?
CANNOTANSWER.
What was Legacy?
Fall Out Boy have been instrumental in the careers of other artists, such as Panic! at the Disco.
Are there other bands that they influenced?
Several artists, such as You Me at Six and Taylor Swift, have created or performed covers of Fall Out Boy songs as a homage to the band.
Are there any other interesting aspects about this article?
The Fall Out Boy band members were the first inductees to the "Hall of Wood" at the 2015 MtvU Woodie Awards.
Did they win other awards?
In 2017, Fall Out Boy were announced as the first winners of Rock Sound's Hall of Fame Award as part of the Rock Sound Awards.
What other recognition did they get?
In a list of the 50 greatest pop-punk albums of all time, Rolling Stone placed Fall Out Boy's 2003 album Take This To Your Grave as the fifth greatest.

Question: What's the biggest award they've won?
Self-contained rewrite: What's the biggest award Fall Out Boy have won?