Last week we revealed that Steve Jobs was set to feature in a forthcoming exhibition at the National Portrait Gallery, titled “American Cool.”

With the exhibition having now opened, this is the portrait of the Apple co-founder that curators Joel Dinerstein and Frank H. Goodyear III chose to use: an image taken by photographer Charles O’Rear — perhaps most widely known for his digitally augmented “Rolling Hills” background used for Microsoft Windows XP.

What do Steve Jobs, Tony Hawk, Elvis Presley, and Marlon Brando have in common? All of them qualify as “cool.”

That’s the verdict of the curators of a new exhibition at the Smithsonian’s National Portrait Gallery — opening Friday — which explores the concept of “American Cool” through some of its most iconic figures.