Conversation so far:
What have Fall Out Boy left as a legacy?
Sugar, We're Goin Down as possibly "the most listened-to emo track of all time".
Was this created while they were still together?
In 2009.
Did they have any other hits that did well?
Grand Theft Autumn.

Question: How well did it do?
Self-contained rewrite: How well did the song "Grand Theft Autumn" do for Fall Out Boy?