Ryan Jack scored the only goal of the game to end Celtic's long run of Old Firm dominance with a 1-0 victory for Steven Gerrard's Rangers at Ibrox.
Brendan Rodgers had won 10 and drawn two out of 12 derby clashes since moving to Glasgow two-and-a-half-years ago, but Gers' long wait for a victory over their bitter rivals was finally ended thanks to Jack's first-half winner.
The Hoops were backed by just 700 travelling supporters and found themselves drowned out both on and off the park as Rangers' pressing game fired up the jubilant home faithful.
Steven Gerrard will now believe his side have proven they are in the hunt for the title after drawing level on points with Celtic, albeit having played a game more.
Gerrard had bemoaned his side's lack of belief in their previous meeting but there was no hesitation this time as they pressurised Celtic into mistake after mistake.
Craig Gordon was heroic at times as he came to Celtic's rescue time after time as the likes of Candeias and Goldson went close.
Rangers were turning up the heat and Brown - who had a day to forget - looked relieved as he headed against his own crossbar from Halliday's in-swinging corner.
But Gerrard's team got the goal they longed for after 31 minutes. Kent ran Mikael Lustig to the corner before sitting the Swede down with a brilliant turn. He found Jack with the cut back and the midfielder slotted past the wrong-footed Gordon with a nick off Brown's shins.
Gordon's fingertip save kept out a Jack strike and worried by the continued flow of traffic coming at his team, Rodgers rolled the dice as he replaced Johnston with Edouard on the hour mark.
He thought Callum McGregor had levelled after 67 minutes, but the flag was already up as he slotted through his Gers namesake's legs.
Edouard had turned the game in Celtic's favour on their last Govan visit back in March and his run almost handed the visitors their chance with five minutes left but Halliday's brave block ensured Rangers clinched a precious win.
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