Welcome back to Liner Notes, MetroLyrics' interview series featuring songwriters discussing their craft.

For this episode in the series, Australian electro-pop duo Empire Of The Sun, who are celebrating the release of their sophomore record Ice on the Dune, sat down with us to talk lyrics and songwriting. During the interview, members Luke Steele and Nick Littlemore describe their unique collaborative process for writing lyrics, why song writing is similar in some ways to running a marathon, and how songs from the new album, including lead single "Alive," evolve over time and take on different meanings to different people.

Watch the video above for an exclusive look into the creative process of Empire of the Sun, and, when you're done, be sure to check out our previous Liner Notes episodes:

Empire Of The Sun's Ice On The Dune is available on iTunes now. Share your thoughts on the band's Liner Notes interview in the comments below.