Conventional Weapons

In an interview with Rolling Stone in October 2011, guitarist Frank Iero revealed that new music could be out "by summer".

On December 18, 2011, the band appeared on Nick Jr.'s Yo Gabba Gabba!, and performed a song called "Every Snowflake Is Different (Just Like You)". This was part of a Christmas special for the show. The special included other famous guests such as Tony Hawk and Tori Spelling.

In February 2012, members of My Chemical Romance revealed that they had been building a studio in Los Angeles to record music for the band's fifth album under the working title MCR5, now with touring keyboardist James Dewees as an official member. The band worked with engineer Doug McKean, who previously worked on The Black Parade and Danger Days: The True Lives of the Fabulous Killjoys.

 On September 14, 2012, Frank Iero announced through the band's official website a new project entitled Conventional Weapons. 

The project revolved around 10 unreleased songs that were recorded in 2009, prior to the making of Danger Days. The band released two songs each month for five months from the Conventional Weapons sessions, starting in October 2012 and finishing in February 2013. According to the October 2012 issue of Q magazine, Frank Iero reported early sessions for MCR's next album with the new drummer Jarrod Alexander were progressing well. "Jarrod is a rad guy and a fantastic player. It's been really fun making music with him these past few months," Iero commented.

On March 22, 2013, the band announced their break-up on their official website,issuing this statement:

“

Being in this band for the past 12 years has been a true blessing. We've gotten to go places we never knew we would. We've been able to see and experience things we never imagined possible. We've shared the stage with people we admire, people we look up to, and best of all, our friends. And now, like all great things, it has come time for it to end. Thanks for all of your support, and for being part of the adventure.

”

Gerard Way posted an extended tweet on his Twitter account two days after the website announcement, where he confirmed the disbanding of the group but denied that altercations between band members was the reason for the split.

Cover of the album "Convetional Weapons"