what is popular music?

My initial thought on the definition of popular music aka POP was that this type of music was commercial chart topping music thats produced in mass quantities and is to be enjoyed by everyone. Defining POP or 'popular' music would be difficult. Early research provides contrasting evidence to what we know of the term today. The word 'popular' in the earliest centuries was seen as a negative term, as it was linked to the characteristics of common people for e.g. vulgar. However as centuries passed the term was used to mean 'widespread' and positive meanings began to be associated with it. 'Popular' could be justified as being made from and of the people i.e. singing in church or in the shower, it is home made. This particular style of music follows traditions and has influences of culture, we as consumers want to be involved in what is current and popular music is part of this. Music does not have to be enjoyed by all, as long as it appeals to some then it could be accepted as 'popular' as it is being listened to by people.