First lady Melania Trump shared photos Saturday of her visit with the Beijing Zoo's famous "goodwill ambassador," Gu Gu the panda. "Wonderful to meet Gu Gu," the first lady tweeted along with a picture of her in the giant panda's enclosure. As she arrived at the zoo on Friday, Trump was greeted by a group of school children waving Chinese and American flags. The children later sang for the first lady.