This dataset is from my last.fm profile (pulled using this service). This data was parsed so that it only includes the number of plays for my Top 10 most listened to artists.

The data is parsed such that there are 10 data points per month, one for each artist in the top 10. Each point represents the number of plays for that artist in that month. The legend (which is sorted from most played to least played, top to bottom) can be clicked on to view only the data points corresponding to that artist.