Conversation so far:
What is Joy Division's legacy?
Despite their short career, Joy Division have exerted a wide-reaching influence, emphasizing mood and expression, pointing ahead to the rise of melancholy alternative music in the '80s.
who did Joy Division influence?
Joy Division have influenced bands including U2 and the Cure to later acts such as Radiohead, Nine Inch Nails, The Smashing Pumpkins, Neurosis, Interpol, Bloc Party, Editors and rap artists.
did Joy Division tour with u2

Question: what is something big that really helped there career
Self-contained rewrite: what is something big that really helped Joy Division's career