Why I think certain songs are popular

I love to talk about my theories on here and while some of them might be wrong it's great to talk about them.  I want to talk today about why I think certain songs are popular.  Have you noticed that sometimes the most dumbest, ignorant moronic song is popular.  Why do you think that is?  I will tell some reasons I have for this.  First I think the radio plays a song too death until you are either forced to like it or are sick of it.  Please understand this is not a bash to the radio stations or the DJ"s who work there.  They are bascially forced to play the song and I'm sure deep down some of them have got to be sick of hear the same song over and over and over again.    I like music just as much as the next person.  I just don't like popular songs as much because of the overplay and the overkill of the song. I know of people who will play the same  songs  over and over until I don't want to hear it again for five years.  I think that's why I end up listening to classic rock or I buy christian bands that very few know.   Second I think we as the people of the world have turned off our minds to what a song is saying.  If it's got a good beat then we will listen to it.  While I'm like you in the aspect I like a good beat I like knowing what the song I'm listening to it saying.  Third if there is a special type of dance to the song that will make it popular too.  After a while I just don't even want to listen to music anymore.  I think I would rather just read a good book about how to make money on the internet or how to build a website.   So I would like to hear why you think songs are popular.  Is there any other theories you have on this that you'd like to share?  Send me your comments on this.  I thank you for reading my Interesting Random Theories blog.