Demi Moore is sharing a behind-the-scenes look at daughter Tallulah Willis’ wedding prep. “A glimpse into my beloved Tallulah’s wedding dress fitting,” Moore, 63, wrote via Instagram on Tuesday, August 11, alongside several photos of Tallulah, 32, trying on her dress — a bespoke Balenciaga bridal gown designed by Pierpaolo Piccioli. Related: Tallulah Willis Is Engaged to Musician Justin Acee: ‘Every Day’ Amanda Edwards/Getty Images Tallulah Willis is engaged! Demi Moore and Bruce Willis’ youngest daughter announced her engagement to musician Justin Acee via Instagram on Monday, December 23. Related: Bruce Willis’ Family Guide: Meet the Actor’s 5 Daughters and More Bruce Willis loves having a blended family.