Chrissy Teigen Shares How Luna and Miles Feel About Getting a New Sibling (Exclusive)

Chrissy Teigen chats with ET's Matt Cohen in West Hollywood at Epic's celebration for National Parents Day Off. The 36-year-old author says her and John Legend's two children, Luna and Miles, have contrasting feelings about getting a new sibling. Chrissy also tells how she was asked to star in John's new music video, 'Wonder Woman,' at the last minute. Plus, she reveals which coach on 'The Voice' is the funniest in her and John's group chats!