A teaser for the "The Signal Fire" music video from Massachusetts metallers KILLSWITCH ENGAGE is available below. The full clip will make its online debut on August 20. The song, which features a guest appearance by former KILLSWITCH ENGAGE singer Howard Jones, is taken from the band's new album, "Atonement", which is being released today (Friday, August 16) via Metal Blade Records in the U.S. and Sony Music Entertainment in the rest of the world.

KILLSWITCH ENGAGE singer Jesse Leach said that he wrote "The Signal Fire" lyrics "with Howard in mind and our connection through our similar mental illnesses." He explained: "I mean, now that I've hung with this guy a few times, it's 'crazy' (pun intended) how similar we are. We are brothers in metal, anxiety, hardcore music, love of medicinal marijuana and fighting depression.

"We may be very different-sounding voices, but, in truth, we are similar in many ways in our minds," he added.

Jesse went on to say that the song's lyrics are "about keeping hope in dark times and helping out those in need."

Leach, who has previously blamed his exit from KILLSWITCH in 2002 on his battle with depression, said that he planned "on using this song to help continue to raise awareness for mental health and suicide prevention. Both Howard and I have a very strong outspoken stance on the subject and I will use this to help with the cause," he said.

"Atonement" is the culmination of a trying and turbulent two-year period. KILLSWITCH ENGAGE started kicking around ideas for the album as early as 2017. The band recorded the bulk of the material separately on both coasts. However, in the middle of the process, a polyp developed scar tissue in singer Jesse Leach's throat, forcing him to undergo surgery. The intense three-month recovery ended with speech therapy, vocal therapy, and scream therapy. The band ultimately emerged with an album that is further evidence of their undeniable legacy as one of the most enduring metal bands of the last two decades and beyond.

The elaborate illustration on the "Atonement" album cover was created by none other than talented U.K.-based artist Richey Beckett (METALLICA, MASTODON) with the band's own Mike D'Antonio handling art direction and layout duties.

"Atonement" features guest appearances by the band's former lead singer Howard Jones and TESTAMENT frontman Chuck Billy. It marks the band's third full-length release since the return of Leach, who rejoined the group in 2012.

"Atonement" track listing:

01. Unleashed

02. The Signal Fire (feat. Howard Jones)

03. Us Against The World

04. The Crownless King (feat. Chuck Billy)

05. I Am Broken Too

06. As Sure As The Sun Will Rise

07. Know Your Enemy

08. Take Control

09. Ravenous

10. I Can't Be The Only One

11. Bite The Hand That Feeds

Leach recently said that he "wouldn't change a thing" about the follow-up to 2016's "Incarnate". "At first, I was a bit crestfallen that a few songs I truly loved didn't make the cut," he wrote on Instagram. "Now after time has passed (and I've not listened to it for a while), I listened with fresh ears today. I gotta say I am quite satisfied! The messages, the tones, the track listing order, the artwork, the overall feel of this album, it just feels fresh!

"I feel there is something for everyone on this one. It captures the wide range of styles and topics that are part of our history as a band as well as pushing things just a touch. It is a pretty amazing feeling as a very picky and perpetually unsatisfied (and fairly insecure) artist to feel accomplished."

Leach appeared on KILLSWITCH's self-titled debut and sophomore album, "Alive Or Just Breathing", before exiting the band. Jones took over on vocals for "The End Of Heartache", "As Daylight Dies" and the 2009 self-titled set before being dismissed from the group seven years ago.

"Incarnate" debuted at No. 6 on the Billboard 200 with first-week sales of 35,000 equivalent album units. In terms of pure album sales, it opened with 33,000 copies.

KILLSWITCH ENGAGE's last release was the "Beyond The Flames: Home Video Part II" two-disc, Blu-ray and CD package.