Now a days EVERyone is having a android cellphone but its sad that they are unable  to download  songs.This problem is becoming very common because when we click on the song it just start playing but there is no option of downloading  but now i hav got rid of one app called free music mp3 app  you can download it from HERE

AFTER DOWNLOADING JUST OPEN IT 
AND SEARCH for any song 
it will appear like this 
Now just click on any of song 
and it willstart downloading