Amy Winehouse's New LP Heading For No.1
Lioness: Hidden Treasures is on track to top the album chart...
Speaking on the social networking site, he tweeted: "Just been told. Amy at Number One... My heart is sad but bursting with pride. Mitch."
He later added that the record has already made a generous amount for his charity, the Amy Winehouse Foundation, stating: "140,000 sold £140,000 to foundation in one day. Well done baby."
Earlier this week, Mitch told ITV show Daybreak that listening back to the late 27-year old's album was "very emotional", adding: "We had to sit through it and after the first couple of songs we sort of calmed down a little bit."
Amy was found dead at her home in Camden, North London in July, with an inquest giving the verdict of misadventure after she was five times over the drink-drive limit at the time of her death.