Watch: Naomi Watts and Liev Schreiber's Daughter Kai Makes Her Runway Debut at 16Björk's daughter is exhibiting model behavior. Ísadóra Bjarkardóttir Barney-who the Icelandic singer shares with ex Matthew Barney-returned to the runway for Cecilie Bahnsen's 10th anniversary show during Copenhagen Fashion Week August 7. The 22-year-old stunned while opening the fashion show in a sheer white dress with floral detailing worn over a silver beaded matching bra and underwear set. Ísadóra's look was completed with sheer knee-high socks, tennis shoes and an icy makeup look.