Found this from a while ago:
Recently, Ke$ha and Blanco hit the studio with producers Dr. Luke and Cirkut to work on a song that he describes as "old hippie rock," co-written with fun. lead singer Nate Ruess. "It's stomps and claps, and the chorus doesn't really have any drums in it, basically. The feeling is so good," says Blanco in his surfer drawl. "And then the verse just pops in, and it's very unexpected and it pops into electronic. So it's rock, it's big electronic breaks and drums."
Read more:
http://www.rollingstone.com/music/ne...#ixzz25iGmcoMF
I am assuming that the song they are describing is 'Die Young'