“Compared with earlier years, songs in 2010 were more likely to include the singer referring to the self by name, general self-promotion, and bragging about wealth, partner’s appearance, or sexual prowess,” the researchers report. “A similar, albeit nonsignificant increase, was also seen for bragging about musical prowess and demands for respect. Overall, the most popular music from 2010 contained more self-promotion than music from 1990 or 2000.”