(Biggest sin in Islam)
Listening to Music is itself Haram in Islam and there are several Hadiths against it. today most of the songs contains such sentences that are against Toheed and contains Shirk. a song ( tuj mai Rab dikhta hai) which means i see God in you.
But the music and songs sentences effects human mind so much that he starts singing them whatever its meaning is. this is one of the reason Music is Haram in Islam. There are several Hadiths declaring Music haram and instrument of Shitan.
Rasool Allah Saw said From among my followers there will be some people who will consider illegal sexual intercourse, the wearing of silk, the drinking of alcohol, and the use of musical instruments as lawful. Allah Swt will destroy them. Sahih Al Bukhari. So its clear that Music is one of the main reason of spreading Shirk and Haram in Islam. May Allah Swt save us from Shirk and show us way of Toheed.