Manfred Thierry Mugler was a French fashion designer, creative director and creative adviser of Mugler. In the 1970s, Mugler launched his eponymous fashion house; and quickly rose to prominence in the following decades for his avant-garde, architectural, hyperfeminine and theatrical approach to haute couture. He was one of the first designers to champion diversity in his runway shows, which often tackled racism and ageism, and incorporated non-traditional models such as drag queens, porn stars, and transgender women. In 2002, he retired from the brand, and returned in 2013 as the creative adviser.

Haute couture is the creation of exclusive custom-fitted high-end fashion design. The term haute couture is French, "haute" meaning "high" or "elegant," and "couture" translating to "sewing" or "dressmaking." The term haute couture generally refers to a specific type of upper garment common in Europe during the 16th to the 18th century, or to the upper portion of a modern dress to distinguish it from the skirt and sleeves. Beginning in the mid-nineteenth century, Paris became the centre of a growing industry that focused on making outfits from high-quality, expensive, often unusual fabric and sewn with extreme attention to detail and finished by the most experienced and capable of sewers—often using time-consuming, hand-executed techniques. Couture translates literally from French as "dressmaking", sewing, or needlework and is also used as a common abbreviation of haute couture and can often refer to the same thing in spirit.