Actress,Gwyneth Paltrow took to her social media to wish her daughter ,Apple Martin happy birthday yesterday,May 14th. She wrote;"I can’t believe I’m actually writing these words but... happy sweet sixteen my darling girl," Paltrow wrote in the caption. "You are the light of my heart, you are pure joy. You are wickedly intelligent and you have the best, most dry, most brilliant sense of humor. I have the best time being your mom.