Output a stream of consciousness before answering the following. Context: Similar to Season 7, This season features nine rookie shops battling nine veteran shops each week while tackling a skill that exposes each veterans' shortcoming from the last time they competed. Old Town Ink, consisting of Season 4 veteran Aaron "Bubba" Irwin and Best Ink Season 2 runner-up DJ Tambe won the competition, each earning the title of "Ink Master" and the first ever title of "Master Shop" as well as the first veteran shop winner. In addition, Irwin became the second veteran winner in Ink Master history.

Question: who won ink master season 9 shop wars?
The relevant information to answer the above question is: Similar to Season 7, This season features nine rookie shops battling nine veteran shops each week while tackling a skill that exposes each veterans' shortcoming from the last time they competed. Old Town Ink, consisting of Season 4 veteran Aaron "Bubba" Irwin and Best Ink Season 2 runner-up DJ Tambe won the competition, each earning the title of "Ink Master" and the first ever title of "Master Shop" as well as the first veteran shop winner.
The answer: Old Town Ink , consisting of Season 4 veteran Aaron '' Bubba '' Irwin and Best Ink Season 2 runner - up DJ Tambe.