Conversation so far:
What is Reformation in relation to the band New Order?
The band New Order reconvened in 1998 at the suggestion of Rob Gretton.
How was the band New Order reformed?
By the second meeting everyone in the band New Order agreed to continue playing, scheduling their reunion gig for the Phoenix Festival that same year.
What genre of music are the band New Order?
New Order are an English rock band.

Question: Did they collaborate with any artists?
Self-contained rewrite: Did the band New Order collaborate with any artists?