01/03/2012 12:18 GMT | Updated 01/05/2012 06:12 BST

Holly Willoughby In Tears On This Morning Over Guest Family's Story

This Morning host Holly Willoughby broke down in tears after hearing a heartbreaking tale of a family rocked by cancer.

She and co-host Phillip Schofield were interviewing St John Greene who has written a book inspired by the loss of his wife Kate, who died at the age of 37.

But as she spoke to her guest and his two sons Reef and Finn, Holly was unable to control her emotions.

The presenter, dabbing away her tears, told the boys: "I'm a very silly lady."

Kate died after being diagnosed with breast cancer, but had left a list of things she wanted her young family to do after she was gone.

Her husband has published the story in a book called Mum's List, and there is interest in bringing it to life as a film.

He told the ITV1 presenters: "I was very proud to have her as my other half."

Holly finished the interview sitting next to the two boys still dabbing away her tears, and later pointed out that the programme's make-up team had to fix her face.