friendly package that's catchy rock music. ♪. ♪ ♪ >> john mayor was this guitar player who brought these sentimental love songs. he was huge. of blankets. your valley is a wonderland ♪ >> in the 2000s, rock itself becomes numb and weirdly apolitical for a time when the country was at war. >> post 911 some believe familiar music will sell well this holiday ♪, ♪ >> nickel back had bigger hits than anybody. >> everybody is welcome in the nickel back club. we had a big club >> a lot of rock is not really doing what it used to do almost like it lost its will to fight.