There are multiple artists called Lung.
1) James Ellaway, aka Lung, started his musical career in a hardcore band at 16. The Cardiff based producer made his move to drum and bass after getting hooked on the sounds of DJ Marky and Black Sun Empire and soon earned himself a residency at long running Cardiff drum and bass night, Aperture. In 2011, he released his debut track, Relapse'on Med School, which earned him a deal with the label and the release of his album Why Does Anyone Ever Do Anything?
http://soundcloud.com/lung
http://iheartkokeshi.com
2) Lung were an early 1990s noise rock/experimental band from New Zealand, associated with Palmerston North's Yellow Bike Records and The Stomach venue. Lung's principle line-up was comprised of Brent Gemmill, Phil Williscroft and coordinator of The Stomach, Dave White. They released the album Cactii in 1991 and Three Heads on a Plate in 1993.
3) Lung were an experimental hardcore band from Toronto.
http://lungtoronto.bandcamp.com