Two howlers from goalkeeper Artur Boruc handed Hibernian victory over SPL leaders Celtic after a five-goal thriller at Easter Road.
Dean Shiels' late goal floored Celtic and Artur Boruc
Boruc allowed a Steven Fletcher drive to squirm over his body after five minutes, but Aiden McGeady drove home the equaliser 21 minutes later.
Thierry Gathuessi fired Hibs back into the lead, only for Gary Caldwell to head an equaliser after the break.
But Dean Shiels pounced after Boruc dropped a Merouane Zemmama drive.
It leaves Hibs as the only unbeaten side in the Scottish Premier League.
And it meant Celtic had suffered a rare two defeats in a row following their midweek reverse against Shakhtar Donetsk in the Champions League.
Mark Wilson and Shunsuke Nakamura were ruled out after picking up injuries in Ukraine and were replaced with Jean-Joel Perrier-Doumbe and McGeady.
Hibs were without the suspended Clayton Donaldson, while Filipe Morais dropped to the bench, with Fletcher and Kevin McCann being granted starting berths.
Manager John Collins sprung a surprise by adopting a 3-5-2 formation that had backfired on a couple of previous occasions.
And goalkeeper Yves Ma-Kalambay was forced to make a couple of blocks from Scott McDonald efforts after the Australian exploited the extra space just outside the six-yard box.
But Hibs stunned the visitors when Fletcher's slightly deflected drive from 25 yards somehow managed to deceive Boruc.
That settled the home side, but they suffered a blow after 19 minutes, when Fletcher was stretchered off in some distress after picking up a leg knock following a 50-50 challenge with Stephen McManus.
Steven Fletcher (right) scored and then suffered a bad injury
And the Edinburgh side were pegged back seven minutes later after a swift interchange of passes between McDonald and Jan Vennegoor of Hesselink inside the Hibs box set up McGeady to drive the ball into the corner of the net from 16 yards.
Collins had seen enough and pulled off young Lewis Stevenson after 29 minutes and his replacement, Morais, made an immediate impression with some clever jinking runs from central midfield.
The former St Johnstone and Millwall player was involved in Hibs' second goal four minutes before the break.
Gathuessi pounced on a poor headed clearance by Caldwell to blast the ball into the far corner from 15 yards.
Hibs were first to threaten after the break and Caldwell cleared from in front of his own goal after Morais had beaten Boruc to a through ball and lobbed the goalkeeper from an acute angle.
Mickael Antoine-Curier and substitute Shiels both fired efforts wide, but Celtic started to take control.
Only two desperate late lunges from Rob Jones denied Paul Hartley and Scott Brown being put clear close to goal.
And Ma-Kalambay did well to turn a powerful McGeady effort over the crossbar.
But, from the resulting corner, Caldwell headed powerfully home from eight yards.
Just when it looked like Celtic would save their unbeaten league record, Boruc dropped Zemmama's drive and Shiels forced the ball home.
Hibernian: Kalambay, McCann (Zemmama 74), Hogg, Jones, Murphy, Gathuessi, Beuzelin, Kerr, Stevenson (Morais 30), Antoine-Curier, Fletcher (Shiels 20).
Subs Not Used: McNeil, O'Brien, Joneleit, Campbell.
Booked: Gathuessi, Antoine-Curier.
Goals: Fletcher 5, Gathuessi 41, Shiels 87.
Celtic: Boruc, Perrier Doumbe, Caldwell, McManus, Naylor, Hartley, Scott Brown, Donati (Riordan 89), McGeady, Vennegoor of Hesselink, McDonald (Killen 67).
Subs Not Used: Mark Brown, Zurawski, Sno, O'Brien, O'Dea.
Booked: McManus, Caldwell.
Goals: McGeady 26, Caldwell 66.
Ref: A Freeland