Jeff Jimerson is a Pittsburgh-based singer, best known as the national anthem singer for the Pittsburgh Penguins for over two decades. He also performs with Airborne, a Pittsburgh-based band.

Based on this passage, who sings the national anthem for the pittsburgh penguins? Let's give stream of consciousness first:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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To answer the question, consider the following: Jeff Jimerson is a Pittsburgh-based singer, best known as the national anthem singer for the Pittsburgh Penguins for over two decades.
So, the final answer is Jeff Jimerson.