Whaam! (1963) by Pop Art artist Roy Lichtenstein. It is widely regarded as one of his finest and notable works. It follows the comic strip-based themes of some of his past paintings. The painting, a diptych, is large in scale, measuring 5 ft 7 in x 13 ft 4 in.
One of the earliest known examples of pop art, Whaam! adapted a comic-book panel from a 1962 issue of DC Comics' All-American Men of War. The painting depicts a fighter aircraft firing a rocket into an enemy plane, with a red-and-yellow explosion. The cartoon style is heightened by the use of the onomatopoeic lettering "Whaam!" and the yellow-boxed caption with black lettering, "I pressed the fire control... and ahead of me rockets blazed through the sky..."