What song is playing when Eddie Murphy enters the redneck bar in movie 48 hours?

The song playing when Eddie Murphy's character, Reggie Hammond, enters the redneck bar in the movie *48 Hours* is "The Ballad of the Green Berets" by Staff Sergeant Barry Sadler.

This song was a popular patriotic anthem during the Vietnam War, and its presence in the scene serves to highlight the contrast between Reggie's urban, streetwise persona and the rural, conservative environment of the bar.