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:
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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.
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