Two tries apiece to Len Ikitau and Marika Koroibete have - incredibly - raised Australia to a second consecutive Rugby Championship win over world champions South Africa.
Six days after Quade Cooper kicked a walkoff penalty for victory over the Springboks at the Gold Coast, the Wallabies proved that result was no fluke, overrunning the world champions 30-17 at Brisbane.
Trailling 17-15 soon after halftime, Koroibete's brace helped the Wallabies rattle on 15 unanswered points for a bonus-point win that marked Dave Rennie's first successive wins of his international coaching tenure and kept their slim hopes of a championship crown alive.
"We talked a lot about going back-to-back here," says Australia captain Michael Hooper. "We absolutely love playing up here in front of the crowd... couldn't be happier right now."
Australia struck first, after Springboks halfback Faf de Klerk was yellow-carded for blatant offside at the breakdown.
The Wallabies kicked for the corner and from the lineout, they shifted left, where second-five Len Ikitau shrugged off a couple of would-be tacklers to score.
South Africa first-five Handre Pollard grabbed three points back with a penalty, but before de Klerk could rejoin the game, Ikitau had his second try, following a bruising run from prop Taniela Tupou.
Pollard and Aussie first-five Quade Cooper exchanged penalties, before Wallabies flanker Lachie Swinton was marched for a no-arms tackle - a call that so nearly drew a red card.
Moments later, Pollard slotted his fourth penalty to bring South Africa within three points and Australia lost the services of fullback Tom Banks, removed from the action with a suspected broken arm.
The home side arrived at the halftime break still 15-13 ahead and still a man down, and with Swinton about to return, de Klerk engineered a go-ahead try, kicking behind the Aussie defence for centre Lukanyo Am to chase down and score.
Cooper restored a one-point lead with a penalty from in front of the posts, then another burst from Tupou put winger Marika Koroibete across for a well-taken try.
The rugby league convert had a second, when loose forward Pete Samu ran deep into the 22 and Koroibete dove across in the corner, then the Wallabies showed their newfound steel to hold off their more-fancied rivals.
The result will also see Australia climb to No.3 in world rankings - behind South Africa and New Zealand, as they take on Argentina in Townsville next Saturday. The Springboks must find a way to bounce back for their titanic clash - their 100th - against the All Blacks.
Australia 30 (Ikitau 2, Koroibete 2 tries; Cooper 2 conversions & two penalties) South Africa 17 (Am try; Pollard 4 penalties)
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