There is more than one artist with this name: 1.) South Florida hardcore in the vein of Converge, Cursed, Disembodied, and Entombed. Get their debut on http://www.deadtruthrecordings.com, and see them this spring/summer 2011. Facebook.
Myspace.
Bandcamp. 2.) A rock band from Brisbane, Australia. Nick Spadotto (Vocals) - Michael Graham (Guitar) - Blake Lonie (Bass Guitar) - Sam Graham (Drums).
Official Facebook.
Soundcloud. 3.) A metallic hardcore band from Auckland, New Zealand. Members: Roger (bass), Suren (drums), Richie (vocals), Ahnand (guitar), Jono (guitar). Facebook.

Read more about Hivemind on Last.fm.