Comedian and bad girl Chelsea Handler took on a more serious tone during her interview with Rosie O'Donnell, revealing parts of her past not many fans know about. She talked tearfully about the death of her mom, and how in the moment she was saying her final goodbyes, she finally "grew up." Watch here:

Chelsea Handler Discusses the Loss of Her Mother

Chelsea Handler reveals the emotional details of the days leading up to the passing of her mother.