There is more than one artist with this name:
1) HIGHLIFE is the moniker of Llondon born Sleepy Doug Shaw.
Sleepy Doug Shaw moved to NYC in 2003 at the age of 19 and began playing shows around the city. He formed among natives later that year with Hisham Haroocha (Black Dice/Soft Circle) and Abby Portner (Rings) before joining the band White Magic in 2005.
Shaw adopted the Highlife moniker in late 2007 in an attempy to "imbue a feeling of rejoicing and high consciousness" Read more on Last.fm