It appeared as though Zuckerberg studied the 22-year-old’s February performance of ‘Beautiful Things,’ as he executed it in the most similar fashion he could. Despite opting out of Boone’s signature backflip off the piano, the father-of-three still jumped off of the musical instrument before seemingly belting out in song. The birthday girl, dressed in a black dress and silky-beige shaul, was seen hysterically laughing at her husband’s sudden and bizarre gift from the heart. Women in gowns and gloves alongside tux-wearing men clapped and cheered behind Chan, as Zuckerberg continued his passionate performance with the help of a band right behind him. ‘I can’t believe my eyes,’ Boone later wrote in Zuckerberg’s comments.