This one is not great.

This one is a stupid, but good, disco song. And, this time, two guys are in slightly offensive costumes!

It’s about a literary character called Hadschi Halef Omar created by Karl May. If you’re interested in German orientalist fiction, check it out. (There’s also a movie from 1964 based on his book Der Schut) English lyrics: https://lyricstranslate.com/en/Hadschi-Halef-Omar-Hadschi-Halef-Omar.html. Moskau is still their best song.

From Wikipedia: Halef is the exceedingly loyal servant, companion and friend of German adventurer Kara Ben Nemsi. Halef accompanies Kara Ben Nemsi through all his adventures in the Middle East from Durch die Wüste to Der Schut. He is a very devout Muslim, and throughout the adventures with Kara Ben Nemsi he tries to convince him of the superiority of Islam.”