There are several artists using this name:
1) A jungle/drum & bass producer Gavin Cheung who has released and remixed music for numerous labels such as Moving Shadow, Reinforced and Good Looking Records. Creating music since 90's.
2) A Russian Rock band formed 2008 in St. Petersburg that can be found: http://www.myspace.com/nookieonline
3) Also a Brasilian band from Santa Maria, Rio Grande do Sul.
Nookie is composed by Henrique (guitar, vocals), Fábio Corrêa (bass), Deco Marques (drums) and Dj Orzabal (pick-ups). Read more on Last.fm