United Kingdom, July 13 -- Cheryl Tweedy found it "heartbreaking" when Liam Payne's final TV show was released on Netflix.

The 31-year-old singer / songwriter filmed Building The Band before his tragic death following a fall from a balcony in Buenos Aires, Argentina last year and Cheryl, 42, the mother of his eight-year-old son Bear, has reportedly found it difficult to deal with the release of the show.

A source told the Mirror: "It is very sad for Cheryl. She's very proud that Liam's final project is now available for the world to see, but obviously it's heartbreaking, too, after Liam's death. It's a poignant reminder to Cheryl - and to his fans - of how much more Liam could have done with his life. But that potential was tragically c...