Mr. Brainwash is a French street artist and videographer known for his large-scale installations and prints of celebrities like Madonna, Kate Moss, and Marilyn Monroe. His practice of subverting cultural iconography and appropriation borrows from Andy Warhol, Keith Haring, and Bansky. Fellow street artist Alec Monopoly has said that he considers Mr. Brainwash a mentor. He is perhaps best known for his role in Banksy’s documentary Exit Through the Gift Shop (2010), which features Mr. Brainwash’s rise to success in the street art scene. “Banksy captured me becoming an artist,” Mr. Brainwash has said. “In the end, I became his biggest work of art.” Born Thierry Guetta on November 11, 1966 in Garges-lè...