Conversation so far:
Why did Fall Out Boy take a hiatus?
Fall Out Boy's Andy Hurley went through the darkest depression [I've] ever felt... Wentz, who had been abusing Xanax and Klonopin, was divorced by his wife and returned to therapy.
Did Fall Out Boy come back together?
Fall Out Boy band members Stump and Wentz met up for the first time in several years in early 2012 for a writing session.
What side projects did Fall Out Boy band members do?
Fall Out Boy band member Wentz formed electronic duo Black Cards with vocalist Bebe Rexha in July 2010.
Did any of Fall Out Boy band members make any solo albums?
Stump was the only member of the quartet to take on a solo project while Fall Out Boy was on hiatus, recording debut album Soul Punk entirely on his own
Was Patrick Stump's Soul Punk album successful?
Patrick Stump blew through most of his savings putting together a large band to tour behind Soul Punk, but ticket sales were sparse and the album stalled commercially.

Question: Did they work with any other artists?
Self-contained rewrite: Did Fall Out Boy band members work with any other artists besides Bebe Rexha?