Artist promoting songs

Artist promotes songs using social media such as twitter and Facebook because they are a popular site to go on and that fans and other people will see that there is a new song which will make people go and listen to it and also buy the song and help promote it. When there is a new song coming out sometimes their fans will help them promote it and get something trending on the site and normally they get them to go and buy it on iTunes because that where normally the song is and they want it to get to number 1. For example a trend which you can have a twitter is #BuyBangBangOniTunes and they to get it to the top trend. Also the song could be trending because many people were tweeting the song and also the artist on their twitter. On Facebook they might of posted a picture of their new song and it could get the most likes. These 2 examples are a good way for an artist to promote a song because lots of people are always on it and also millions of people have signed up to twitter and Facebook. When the artist tweet or post about it,it will instantly get  fans to listen and they will love the song and pre order it. Other range of media which they use to promote