Other Australian acts named so far were The Swiss from Sydney, The Chevelles from Perth and London-based Sydney singer songwriter Josef Salvat.
They join acts including Bring Me The Horizon, London Grammar, Urge Overkill, The Blank Tapes and Glass Animals.
Close to 8,000 artists from over 55 countries applied to play, reported SXSW. Export music body Sounds Australia is planning another major all-day Aussie BBQ with an Australian stand in the Trade Fair and other promotional events.