Idina Menzel and Cara Mentzel talk about new book ‘Voice Lessons: A Sisters Story’

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Broadway star Idina Menzel joins Kathie Lee and Hoda along with her sister, Cara Mentzel, who’s written a new book about their close relationship called “Voice Lessons: A Sisters Story.” Idina says that even though she’s the big sister, she has often looked to Cara for wisdom.