Goss chose Amy's father to open for him when he performs at the iconic venue later this week. The former Bros singer is bringing his critically-acclaimed Las Vegas show to London for one night only.
Speaking ahead of the show, Goss explained why he decided to offer the slot to Mitch, who released his debut album Rush of Love last year.
"When I heard about Amy passing away, I was surprised by how moved I was," he told Digital Spy. "I was very, very saddened because I was so moved by her records; especially the Back to Black record, which is such an amazing record - so commercial, yet so credible. A hard combination.
"She just had a way with words and so genuine; I believed everything she sang. When I heard about it, I was obviously very, very sad. But then I heard about Mitch's story; he was on his way to do a show in New York and he had to come back [to London]."
The 43-year-old revealed that he had met up with Mitch for drinks earlier this week: "He's such a lovely man. I found out last night, and was relieved to see, that Mitch is just a very loving father. He truly loves Amy. Mitch is a very loving father, and is incredibly saddened by her loss. He got straight on a plane and came back and dug straight into the foundation."
Describing the London taxi driver as "one of the nicest people you could ever meet", he continued: "My reason for calling him, is just one singer to another singer. I'm not an elitist person. I just think we're all in the same business. I want him to have an amazing night. I think now - Mitch is going to play Royal Albert Hall on Friday. I'm going to be in the wings, watching his set.
"I'm going to get one hell of a kick out of seeing him doing his thing. He's a really good singer, and got lots of style. He's got every right to have the time of his life up there on Friday night. I hope he has the time of his life in honour of his beautiful daughter."
Goss, who is currently working on new material with legendary producer Ron Fair, added: "I think that's what Amy would have wanted. Mitch told me that she had Bros pictures on her walls. It's pretty incredible when you're so inspired by someone younger than you.
"A singer to a singer, Mitch deserves an amazing night. I wouldn't ask him to sing if he couldn't sing. Life is a lot better if you really want good things for the people around you."
Matt Goss, supported by Mitch Winehouse, plays London's Royal Albert Hall on Friday, October 21.
> Amy Winehouse memoir to be published by Mitch Winehouse next summer
> Amy Winehouse's father Mitch: 'I wish Amy was here so we could give her a cuddle'
Watch Mitch Winehouse perform on GMTV last year: