posted on social media to thank his child
Ella Bléu Travolta
who walked the runway first time in this year's Karl Lagerfeld show at New York Fashion Week.
Sharing a picture of the 22-year old strutting her clothes in an elegant black suit and a lingerie-inspired top
Star wrote "So proud of Ella's debut at fashion week in New York City!"
Ella posted the catwalk image and two black-and white behind-the-scenes images