At least two artists use the name Oceana: 1. A post-hardcore/alternative rock band from St. Petersburg, Florida, USA 2. A singer from Germany also known as Oceana Mahlmann. 1. Oceana is (as of November 3rd, 2009) a 4-piece post-hardcore/alternative rock band from St. Petersburg, Tampa, Florida that released two full length albums and an EP, entitled The Tide, Birth Eater and Clean Head respectively. They announced they were disbanding 6/19/09, however as of November 3rd, 2009 they are back together with a changed line-up.