important, a relationship that has lasted 50 years with one of the most famous men in fashion, karl lagerfeld. >> with karl we work together many years. he's been working with my family for six years and every time it's like the first time. >> the ff stands for fun fur, karl lagerfeld coming on board in 1965 and turned it into a fun object. >> he loved to work at night, maybe because in the morning he wants to be by himself thinking. he's a genius. he's someone that is full of interest. maybe that's why -- that's how i learned to be curious about life. he knows everything. he has a great knowledge. he's one of the most cultivated persons i've ever met in my life. but what i most like of him is that he has a great sense of humor. >> when karl was coming,, i just tell you a little episode, he was like a party, and they would dress up like comedians and they would do theater. there are films about it, images you can see if you want and basically to celebrate his birthday, they would create a comedy and act on a stage for him. so they would train for weeks in secret, you know, to make him happy.