Kind of German western/pop music. I don't know a thing about the Flamingos or the Arizona-Boys. "Thomas Rock aus Alabama" (en: Thomas Rock from Alabama) was a cover of the US pop hit "The Shifting Whispering Sands". The flip of this was a song called "Oklahoma-Tom", another corny western song. The combination of "Thomas Rock aus Alabama" b/w "Oklahoma Tom" was also recorded by another similar group called 'Die Texas-Boys und Johnny Guitar' (acompanied by the Original Prairie Serenaders) for Electrola Records (Electrola EG 8686), maybe it was the same group.
However, this one was released around 1956 and must have been a hit here in Germany, since "Thomas Rock aus Alabama" was used on one low down budget comp containing 1956 German hits. This comes from my own collection - the sound quality isn't good, I apologize for this. Hope you like it, though!