found: Wikipedia, June 2, 2017(BillyBoy*; BillyBoy* (born 10 March 1960) is an artist, socialite, and fashion designer who was a muse of Andy Warhol; born in Vienna, he was adopted by a Russian couple and moved to New York City when he was four; in 1979 BillyBoy* began to design and manufacture costume jewellery under the label Surreal Bijoux in Paris; BillyBoy* had a collection of over 11,000 Barbie dolls and 3,000 Ken dolls, and in 1987 authored the book Barbie: Her Life and Times; BillyBoy* formed the "BillyBoy* Toys" company, and in 1989 BillyBoy* and his partner released the Mdvanii fashion doll; Warhol's last work Barbie, Portrait of BillyBoy* was a painting of BillyBoy* depicted as a Barbie Doll and was presented to BillyBoy* in New York on 10 February 1986; BillyBoy* moved to Paris in 1978 or 1979; in 1993 BillyBoy* and his partner Jean Pierre Lestrade ("Lala") moved to Trouville-sur-Mer in France, then in 1997 to Switzerland, and finally in 2011 to Delémont)