Moana Pasifika have stunned the NSW Waratahs to claim a 45-28 win in Auckland.
The Waratahs were in control for the majority of the game, taking a 21-7 lead into the break.
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However, the hosts blew away the Waratahs with a remarkable performance in the second half.
They scored six second-half tries as tight-head prop Feleti Sae-Ta’ufo'ou scored a hat-trick.
It's the first time Moana Pasifika have won back-to-back games in Super Rugby Pacific.
An attacking masterclass from Joseph-Aukuso Suaalii had the Waratahs on track for an elusive first away win of the season before the hosts piled on 38 second-half points to runaway with victory on Saturday.
Coach Dan McKellar will be livid after the Tahs defied his orders to man up in D after a similar surrender last week in a 57-12 loss to the Hurricanes in Wellington.
After taking a 21-7 lead to the break, then again stretching their advantage to 14 points with a Teddy Wilson try, the Waratahs collapsed at North Harbour Stadium.
The Pasifika ran in five tries in a devastating 15-minute spell, with prop Feleti Sae-Ta'ufo'ou completing his hat-trick before flyhalf Patrick Pellegrini, fullback William Havili and replacement Fine Inisi added to the Waratahs' humiliation.
The defensive collapse overshadowed another eye-catching performance from Suaalii, who looked to have inspired the Waratahs with three telling touches.
All three ended in tries, with winger Triston Reilly bagging a double and halfback Wilson also benefiting from the cross-code superstar's silky skills.
Returning to fullback after making his comeback from a foot injury last week in the centres, Suaalii's decisive contributions earned the Waratahs a 21-7 halftime lead.
When he burst through to set up Wilson in the 57th minute to go up 28-14, the Waratahs appeared odds-on to claim their first win away from Sydney in 2025.
But then they crumbled.
McKellar's charges have now conceded 105 points in their past two starts.
Tries: Reilly 2, Kellaway, Wilson
Cons: Creighton 4/4
Tries: Sae-Ta'ufo'ou 3, Garden-Bachop, Havili, Inisi, Tupou Ta'eiloa
Cons: Pellegrini 5/7
PASIFIKA (1-15): Tito Tuipulotu, Millennium Sanerivi, Feleti Sae-Ta'ufo'ou, Sam Slade, Allan Craig, Semisi Paea, Ardie Savea (c), Semisi Tupou Ta'eiloa, Jonathan Taumateine, Patrick Pellegrini, Solomon Alaimalo, Danny Toala, Lalomilo Lalomilo, Kyren Taumoefolau, William Havili
Replacements: Sama Malolo, Abraham Pole, Chris Apoua, Tom Savage, Ola Tauelangi, Melani Matavao, Jackson Garden-Bachop, Fine Inisi
WARATAHS (1-15): Angus Bell, Ethan Dobbins, Daniel Botha, Hugh Sinclair (c), Ben Grant, Rob Leota, Charlie Gamble, Langi Gleeson, Teddy Wilson, Lawson Creighton, Triston Reilly, Lalakai Foketi, Henry O'Donnell, Andrew Kellaway, Joseph-Aukuso Suaalii
Replacements: Julian Heaven, Isaac Kailea, Taniela Tupou, Felix Kalapu, Jamie Adamson, Jack Grant, Jack Bowen, Joey Walton
Referee: James Doleman
Assistant Referees: Marcus Playle, Fraser Hannon
TMO: Richard Kelly