Before he had a career in film, Cillian Murphy at the age of 19 played guitar and sang in a band.

Cillian sings and plays guitar in his band 'Sons of Mr Green Genes', named after a Frank Zappa song.

Hilary Fennell describes the band's music music as

a blend of funk, rock and hip-hop.

Cillian says his music is

not constrained by any formula.

Cillian sees his music as going beyond any kind of formulaic pop. He also speaks of the importance of musicianship over popular music.

Cillian went on to have a successful career in film, television and theatre. His film credits include roles in 'Disco Pigs' (2001), 'Intermission' (2003), 'Batman Begins' (2005), 'Breakfast on Pluto' (2005), The Wind That Shakes the Barley (2006), The Dark Knight (2008), 'Inception' (2010), Transcendence (2014) and Anthropoid (2016).