John Legend on Daughter Esti’s Latest Milestone and Adjusting to Their 'Quickly' Growing Family

John Legend chats with ET's Cassie DiLaura in Las Vegas at the Shaquille O'Neal Foundation's third annual fundraising gala, which benefits the Boys & Girls Club of America. The singer opens up about his 'quickly' growing family and reacts to his 8-month-old daughter Esti's latest milestone. This comes after his wife, Chrissy Tiegen, opened up about Esti being the first of their kids to start as a ‘crawler’ in a post on Instagram. John and Chrissy are also parents to 7-year-old Luna, 5-year-old Miles and 3-month-old Wren, who they welcomed via surrogacy in June.