This CD of Sonic music is unique, in that the song itself is translated and then actually done in German. The song is, of course, "They Call Me Sonic". The yellow box says that it includes this. (of course, the box is written in German too) It was released by "CNR Music". It likely contains both versions of the song, which has some unique properties.
First, its a song with lyrics written about Sonic that wasn't used in any game or TV show, which is quite a merit. Next, (and the reason it's not super popular) is it was done in the "Alvin and the chipmunks" style squeeky/screechy funny voice as if Sonic were a mouse singing it: "They call me Sonic...I'm the king of the ring!" etc. 

The german version of the song They Call Me Sonic is called "Hey hier kommt Sonic" which literally translates to "Hey here comes Sonic". You can listen to the songs below! 

Listen to King of the Ring:

Listen to They Call Me Sonic:

Listen to They Call Me Sonic German Version ("Hey Hier Kommt Sonic"):

Todo: Maybe add video clip too?