Theo Kogan (born December 23, 1969) is an American singer, songwriter, model, and actress. She is best known as the vocalist of the all-girl punk band Lunachicks. She also sang in the dance/electronic band Theo & the Skyscrapers. She also has her own cosmetic line, Armour Beauty. She is married to Sean Pierce, the guitarist of Theo & the Skyscrapers and the Toilet Böys.