House of Diehl is the New York-based fashion partnership of Mary Jo Diehl and Roman Milišić. House of Diehl is one of those avant garde fashion labels whose clothes are more likely to be seen in an I-D editorial or on the back of Lady Gaga, than a department store. Their work has also been exhibited in numerous in art environments, including the Massachusetts Museum of Contemporary Art, Deitch Projects gallery, the Priska C. Juschka gallery, and GAle GAtes et al.
They are best known for their rock'n'roll-style live fashion performance, called Instant Couture, with which they've supported Sonic Youth, and staged events at New York Fashion Week; at the Life Ball in Vienna, Austria. Competitive Instant Couture is called Style battling, a growing art form, which has given rise to the Style Wars- The Style Battle Championship Tour. Style Wars toured the US in Fall 2007, and again in 2009. International Style Wars battles have taken place in cities on all five continents.