There are at least two artist named Krakatoa:

1) Hardcore/Metal band since 1995 with one LP and one 7'' 2) Indie guitar band from South East London UK 3) Italian DJ-Set by DJ Pisti and Samuel (Subsonica singer) 4) US avant/chamber rock quartet that released three albums between 1999 and 2003.

Read more about Krakatoa on Last.fm.