'It was the most glorious summer': Cast of 'Mamma Mia' joins fourth hour

Pierce Brosnan, Stellan Skarsgard, Christine Baranski and Andy Garcia join Kathie Lee Gifford and Sheinelle Jones to talk about the fun they had filming “Mamma Mia! Here We Go Again.” When asked if there will be a third installment of the film, Baranski could only say that “they better not wait ten years!”