Adele's father is "begging" her to forgive him.
Mark Evans is desperate to make peace with his 24-year-old daughter - who is expecting her first child with boyfriend Simon Konecki - after he left her and mother Penny when she was just three years old, because he fears he won't ever get to see his grandchild.
He said: "Mum rang and said, 'Mark, I've got some important news for you. Adele is expecting a child'.
"My first reaction was a surge of happiness for her. But as we chatted about how Adele had told her in person, it dawned on me that my daughter hadn't wanted to tell me herself.
"My happiness for her turned to gloom because I realised I really was out of the picture as far as she is concerned.
"I would have loved so much to have been able to hold her in my arms and tell her how happy I was for her.
"I want more than anything to be part of her life again and to be a big part in my little grandson or granddaughter's life. I'm having to face up to the fact that I may never get to know my grandchildren and it is breaking my heart."
"Sure, I've done wrong and I should have been there for her throughout her childhood but I am desperate to make amends now.
"I am begging her to give me another chance."
While he is pleased for the 'Rolling in the Deep' hitmaker, Mark wishes her and Simon had been together longer before expecting their first child, but he admits the brunette singing sensation has "always wanted four kids".
He added to the Sunday Mirror newspaper: "Despite the rift between us, I am genuinely happy for her because she's told mum she's head over heels in love with Simon.
"She told mum she's hoping for a boy first to keep an eye on the other three kids she wants after that.
"I wish Adele and Simon had been together longer. I was the same when I was, coincidentally, pretty much the same age as her. No one could tell me anything because I thought I knew it all.
"We're from the same mould, Adele and me.
"I just wish that I could be a bigger part of Adele's life - and my grandchild's."