Rest assured, neither punk nor chivalry are dead.

Two iconic punk frontmen with a coincidental last name have launched a supergroup and released a charity benefit single. Billie Joe Armstrong of the GRAMMY-winning band Green Day and Tim Armstrong of Rancid and Operation Ivy, joined by Billie Joe's son Joey and Tim's nephew Rey, have formed a new band, aptly named the Armstrongs.

Their hummable new single, "If There Ever Was A Time," dropped June 14, and according to Spin, 100 percent of proceeds will benefit 924 Gilman, a nonprofit punk/DIY venue in the East Bay where both Rancid and Green Day played in their early days. Hellcat Records will also release physical copies of the single.

<iframe width="560" height="315" src="https://www.youtube.com/embed/DH1tLUyhd5g" frameborder="0" allowfullscreen></iframe>

Tim Armstrong also just released a new Rancid album in June, Trouble Maker, while Billie Joe continues to tour with Green Day in support of 2016's Revolution Radio. But despite their busy schedules, this new collaboration and charity single prove the boys haven't forgotten where they came from.

For more from music's fringe, check out our coverage of the APMAs from Cleveland