Ozzy Osbourne says his long-lasting friendship with Lemmy Kilmister had a lot of brutal honesty about their lives and work.

Their friendship started professionally on 1991’s No More Tears, which is where Kilmister collaborated on four tracks – it includes “Mama, I’m Coming Home,” Osbourne’s only Top 40 hit that made it on the Billboard Hot 100. However, they also saw each other in social spaces and not just at work. Right up until the Motorhead legend failed to resist to a variety of maladies, which includes prostate cancer on Dec. 28, 2015 – which happened to be four days after his 70th birthday.

“I went down to South America and he was there on tour, but he was so fucked he couldn’t speak to anyone,” Osbourne says on Metal Hammer. “He was sitting at the front, skinny as a rake. He was riddled with cancer at the end, but mind you, he turned round to me and said ‘I’m probably going to die, I suppose. Never thought I’d make 70, so I did good.”

Lemmy was known for his indulgences, though he had cut back some as his diabetes and hypertension set in. Osbourne added on, “His exact words were, ‘I could have lived a lot longer and taken care of myself, but I lived my life the way I want to live and I ain’t got no regrets.’ Fair enough!”

They had quite the discussions about Osbourne’s long career, too. “He’d go, ‘That record you just made was fucking shit’ or ‘I really like that one,'” Osbourne recalled. “His favorite [line] was, ‘Your best record was No More Tears – yeah, because you wrote on it, you cunt!”

-Intern Asma