That's a fascinating and specific angle. The song you're referring to is almost certainly "Abdi" by the Somali singer K'naan (though K'naan was a child in Mogadishu during the time, the song is a later tribute). However, the track most famously associated with the Black Hawk Down incident in popular culture—and the one that soldiers reportedly heard broadcast over Somali radio—is a different, hauntingly upbeat song: "Waberi" by the group Waaberi (often mislabeled as "Waberi" or 'the Somali national anthem of the 1970s').
The Legacy of "Black Hawk Down" and "Abdi Radio Song" black hawk down abdi radio song
In the film, Abdi turns on the radio in the beat-up truck while driving the American forces, and the militia members sing along to it. The song is an actual Somali track titled " Somalia, Somalia" (sometimes referred to as "Soomaaliya, Soomaaliya") by the artist Hassan Aden Samatar. That's a fascinating and specific angle