"We Built This City" is a 1985 song written by Bernie Taupin, Martin Page, Dennis Lambert, and Peter Wolf, and originally recorded by US rock group Starship and released as their debut single on their album Knee Deep in the Hoopla.

Answer this question based on the passage: when did we built this city come out? Let's have some stream of consciousness first.
The important part for answering this question is: "We Built This City" is a 1985 song written by Bernie Taupin, Martin Page, Dennis Lambert, and Peter Wolf, and originally recorded by US rock group Starship and released as their debut single on their album Knee Deep in the Hoopla. So, the answer is 1985.