Arabic and Spanish sound nothing alike
That song "Solo" is by Iyaz, and a station playing Lady Gaga, Taio Cruz, and Iyaz sounds like a station playing Pop music, not a Dance station. Both Taio Cruz and Lady Gaga have been topping the Billboard Hot 100 recently.
Lastly, why are you wasting time listening to Short Wave radio? The audio quality is usually worse than AM radio, and signals tend to fade in and out. I don't think I've even tried listening to SW radio in like 20 years.
You mentioned Bolivia, there are three CHRs there - there's Rock leaning Stereo 97 in the big city of La Paz and WKM Radio 91.5 over in Oruro, which plays a lot of Rock hits as well. Also in Oruro you've got FM 97.1.
Now if you want to talk Dance radio, I've noticed that over in El Salvador ABC Radio 100.1, which broadcasts to the San Salvador area, leans on Dance (similar to Slam FM Holland).