BillyBoy* (born 10 March 1960)[1][2] is an American artist, socialite and fashion designer who was a muse of Andy Warhol.

[4] During 1984–1990 Mattel sponsored two tours called Le nouveau théâtre de la mode (New Theatre of Fashion) curated by BillyBoy*.

[9][10] The exhibition toured France on board a TGV-train entitled Le Train magique des jouets Mattel..[10] BillyBoy* designed two Barbie dolls for Mattel working as a designer and consultant, "Le Nouveau Théâtre de la mode" in 1984 and "Feelin' Groovy" in 1986.

[14][15] A second version of Warhol's painting, this time with an orange-red background instead of blue, was created for and purchased by Mattel.

[16] In 1993 BillyBoy* and his partner Jean Pierre Lestrade ("Lala") moved to Trouville-sur-Mer in France,[17] then in 1997 to Switzerland,[18][17] and finally in 2011 to Delémont,[18] the capital of the Canton of Jura[18] and near Basel.