[4] Growing up, he was a fan of Rush, Gene Simmons, Sid Vicious, Steve Harris, and Geddy Lee.

[6] The newly formed Audioslave later released their eponymous debut album in November 2002,[7] which would attain triple platinum status.

On April 29, 2007, Rage Against the Machine reunited at the Coachella Music Festival, and later played additional shows in the United States, Australia, New Zealand, and England throughout 2007-2011.

Commerford co-founded the band Future User, together with Jordan Tarlow (keys), Jon Knox (drums) and producer Brendan O'Brien (guitars).

[1] In 2016, Commerford reunited with Tom Morello and Brad Wilk, and was joined by Chuck D and B-Real to form supergroup Prophets of Rage.

Commerford and drummer Brad Wilk contributed to Maynard James Keenan's side project Puscifer and his album "V" Is for Vagina on the track "Momma Sed".

Both have taken part in the production of Dave Grohl's 2013 Sound City soundtrack, with the track "Time Slowing Down".

In a Rolling Stone interview in 2015, he claimed that the Moon landing was faked and he confronted Buzz Aldrin about it at a John Cusack movie premiere.

[16]In December 2022, Commerford revealed he had been diagnosed with prostate cancer earlier in the year, and had undergone surgery prior to going on tour with Rage Against the Machine that summer.

[18] Commerford has been using various Music Man StingRay basses since 2016, a brand he has liked since his beginnings with Rage Against The Machine.