Kevin Gruft

[9][10] As Max Green had recently left the band, Gruft and fellow guitarist TJ Bell ended up playing bass on the album.

After the release of the album, the band embarked on a headlining tour with A Skylit Drive, Sworn In, Sirens and Sailors and Myka Relocate[11] In 2016, they covered the My Chemical Romance song, "Dead!

[16] On April 16, 2021, the band released Chemical Warfare, which he co-produced with John Feldmann,[17] which would mark the last album before his departure to focus on production work.

In this studio, he engineered Machine Gun Kelly's critically acclaimed album Tickets To My Downfall along with Barker, which would go on to peak at #1 in the Billboard 200 charts.

[21][22][23] Other credits include working with pop artists Gwen Stefani on her song "True Babe",[24] and Avril Lavigne on her albumLove Sux,[25] with whom he played on a performance of "Bite Me" at The Ellen Degeneres Show.