@Miriam, mostly radio in Mexico is in Spanish, and stations play music from all over Latin America and Spain. Then also we have a lot of music in English. Spoken programmes are always in Spanish.  My favourite radio station is the one from University of Mexico and there I can listen to music from all over the world while stuck in traffic jejeje

BTW I also hear 99 Luftballons frequently on the radio, great song!

Ok, I went through the playlist of my favourite German radio station to check out, if they really played many songs in different languages, but it turned out, I was wrong. It is a very regular radio station, which plays the latest hits from the charts.

In 13 hours, they played 128 songs, of which were

14 in German

38 from the UK

41 from the US

16 from other native English speaking countries (Ireland, Canada, Australia)

15 in English, but from non-native bands/singers (Germany, Belgium, Netherlands, France, Sweden, Norway, Iceland, Finland)

2 Spanish songs

1 Italian song

1 Trilingual song by a Senegalese singer in Wolof, French and English.

So, 110 songs of the 128 songs were entirely in English. German radio isn't as diverse as I thought. There are radio stations though, which mainly play German songs or are more diverse, but I think it's safe to say, that the average hit radio station in Germany mainly plays English songs. And they don't play more than one or two German songs per hour.

@ Peachey

I guess, they only play English songs from countries UK and the States, and not like from China and Germany, right? Now many singers in many countries actually do sing in English, so it is a pity, that even those songs aren't broadcast in English speaking countries. 

@Sudeep

Thanks for the link!

@Katarina

Serbian radio sounds like a polyglot dream come true. :-) Do you think this has a positive influence on Serbians learning foreign languages?