There is more than one artist with this name: 1) Blueprint is a rapper and producer from Columbus, Ohio. He is the owner of Weightless Recordings and also signed to Rhymesayers Entertainment. He is also one half of the group Soul Position with producer RJD2. Over the span of several years, Blueprint has risen greatly in popularity. He first gained minor underground attention as a member of the crew Greenhouse Effect.
Hail Mary Mallon is a hip-hop group formed in 2009 by Definitive Jux rapper/producers Aesop Rock and Rob Sonic and DJ Big Wiz. Their first officially released track, "D-Up", was featured on the 2009 compilation Def Jux Presents... Vol. 4. Their debut album 'Are You Going To Eat That', was released on the 3rd of May 2011. Their name refers to Mary Mallon or "Typhoid Mary", the first known healthy carrier of typhoid fever in the United States, who infected 53 people with the disease as she continued to work as a cook while denying she had it.