Read this: Life After Death: How Taylor Momsen survived her downward spiral
Sadly, Taylor explains in their conversation that the start of one of the darkest periods of her life began when Lily's dad passed away in 2017.
"We were opening for Soundgarden, which, to me, was the highest of highs," she remembers. "Respect is not the right word; I love your father, I love their music, I love Soundgarden so much, to my core that I still don't know how to put it into words. To be on that tour opening for them was just the most incredible honour and experience of my life. Obviously, it ended tragically."
Detailing her long journey through grief – which was also tragically impacted when her producer Kato Khandwala lost his life in a motorcycle accident the same year that Chris died – Taylor states that recovery ultimately happens when you open up to others about what you're going through.
"Talking to people about mental health is the first step on the road to healing," she says.
Sharing their conversation, Taylor also wrote: "Especially after the year we have all had mental health is a real issue and Lily is doing a wonderful job having open conversations with some excellent guests, it was a pleasure talking to her."
Watch the full interview below: