Good Morning America star Ginger Zee has shared an incredible throwback to her time as the captain of her high school's cheerleading squad.MORE: Ginger Zee's husband shares the most epic throwback baby bump photoThe meteorologist shared the picture as she revealed that her colleague Samantha Wnek was also the captain of her team.WATCH: Ginger Zee's hilarious fauxain of her cheer team," Ginger captioned the snap, revealing she is on the left and Sam on the right."I knew that wide smile came from