Here are reactions to Grant Hart's death on social media Thursday from some of the well-known musicians he influenced:
Musicians remember Hüsker Dü co-leader Grant Hart
Ryan Adams, Craig Finn and more paid tribute via Twitter and other social media.
Ryan Adams: "RIP Grant Hart. Your music saved my life. It was with me the day I left home. It's with me now. Travel safely to the summerlands."
The Hold Steady's Craig Finn: "Grant Hart wrote some of the songs that matter the most to me. Thank you and rest in Peace."
Green Day's Billie Joe Armstrong: "We became a three piece because of Hüsker. We went through adolescence listening to this band. I wanted to be a song writer because of Hüsker Dü. ... Grant, wherever you are, I don't have to put on your records to listen to them. They are memorized in my head."
Tanya Donelly of Belly and Throwing Muses: "Incredibly sad waking up to this news of Grant Hart — RIP amazing musician/songwriter."
Chris Osgood of Suicide Commandos: "I got to see the Hüsker Dü work ethic and creative machine up close, every day they weren't on the road. Those were great days. Grant was a great guy and a force unto himself. It makes me happy that a goofy guy from South St. Paul went out and changed the world!"
More from Bob Mould: "We made amazing music together. We (almost) always agreed on how to present our collective work to the world. When we fought about the details, it was because we both cared. The band was our life. It was an amazing decade."