The Back to Black singer, who passed away in 2011, was remembered at The Amy Winehouse Foundation Gala on Thursday (15Oct15), an event benefitting the charity which was set up in her name.
Mark has been named a new patron of the organisation, and he was among the guests at the gala in the British capital.
During the event, Mark opened up about his friendship with Amy and revealed there are plenty of stories fans still do not know about the superstar singer, revealing she once made friends with a man who broke into her house.
"There is loads of stuff about Amy that nobody knows, she fed homeless people," he told the BBC. "Somebody broke into her flat and she ended up feeding him and looking after him, he was a burglar, not the smartest thing to do.
"But this kid (Amy) had a heart and none of this sort of stuff has been spoken about before and that is the message we want to get across."
Mark also spoke about his support for the charity, which was set up by Amy's parents to help troubled youngsters.
"I've supported it and the work the foundation does from the beginning," Mark added. "I was happy to support it as a friend and a fan and as a patron as well, I think the work they do is great and it is great to keep Amy's legacy going... I think she would be a fan of the fact that young kids are getting musical training and the work that it does she would definitely be a fan of."
The gala featured a fundraising auction and performances by youngsters who have been helped by the charity, as well as pop star Foxes and singer Conor Maynard.
Amy died of alcohol poisoning at the age of 27.
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