Joel Thomas Zimmerman (born January 5, 1981), known professionally as deadmau5 (pronounced “deadmouse”), is a Canadian progressive house music producer and performer from Toronto, Ontario.
As well as his own solo releases, Zimmerman has worked alongside other DJs and producers, such as Kaskade, MC Flipside, Rob Swire of Knife Party and Pendulum, Wolfgang Gartner, and on a number of releases, he has partnered with Melleefresh. An early 12″ single produced on vinyl titled “I Don’t Want No Other” was released by Joel Zimmerman and Derek Caesar under the group name “Dred and Karma”. The 2006 album titled deadmau5 Circa 1998–2002 was released using the alias “Halcyon441”. He has also collaborated with Steve Duda under the alias, “BSOD”, as well as “WTF?” including Duda, Tommy Lee, and DJ Aero.
On December 21, 2015, Zimmerman reopened his Twitter account and posted an apology to his Tumblr explaining his disappearance from social media, stating that he was suffering from depression and will be returning to producing music after the new year.