READ MORE: BBC Breakfast's Sally Nugent 'splits' from husband of 13 years as he 'moves out of home'The Pulp Fiction star wrote on Instagram to his 4.
8 million followers: "Happy Mother's Day Kelly. We miss you and love you! Love, Ben, Ella and John. "Fans rushed to share their support with the family, with one writing in the comments: "You are so sweet.
She is forever your guardian Angel. "The death of the Jerry Maguire star at the age of 57 took fans by surprise as she had kept her two-year-long battle with breast cancer almost entirely private.
Kelly and John got married in 1991 and welcomed their first son Jett the following year, followed by his sister Ella in 2000.
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