This one's all about me,me,me

Vanity, along with some anger,in today's pop lyrics

Popular music is getting nastier. A computer analysis of three decades sees a significant trend toward narcissism and hostility in hit songs. The words "I" and "me" appear more frequently along with anger-related words, while there's been a corresponding decline in "we" and "us" and the expression of positive emotions.

"Late adolescents and college students love themselves more today than ever before," said Nathan DeWall, a psychologist at the University of Kentucky, who conducted the study with other psychologists. They covered song lyrics from 1980 to 2007 and controlled for genre to prevent the results from being skewed by the growing popularity of, say, rap and hip-hop.