Georgie Kelly delivers Matt Taylor's first victory ... on-the-whistle report: Rotherham United 2 Huddersfield Town 1
The Irish hitman had only just come on to the pitch when he bagged the Millers' Championship winner at a near-sold-out AESSEAL New York Stadium.
He'd also scored off the bench in his previous appearance, in a 3-0 home victory over Blackpool.
At the final whistle of a lunch-time kick-off, New York rose in salute of the 25-year-old who who is already a Rotherham legend after is promotion goal at Gillingham last April on his debut for the club.
His close-range strike settled a hard-fought clash and moved his team up to 11th in the table before the rest of today's fixtures.
Taylor, after a draw and a defeat in his opening two matches, was delighted with the three-point haul.
There were few sights of goal in the early stages for either side and it wasn't until the 15th minute that visiting goalkeeper Lee Nicholls was called into action.
Richard Wood did well to get on the end of Dan Barlaser's free-kick but the save from the centre-half's header was an easy one.
Ten minutes later, Nicholls was given no chance when Conor Washington was set up by Dan Barlaser and sent a lovely curling effort beyond the shot-stopper's reach and into the far corner.
It was the second goal of the season for the centre-forward to follow on from his stunning strike against Reading at the same South Stand end in August.
It brought New York to life but the Millers could hold on to their lead for only four minutes before old boy Danny Ward clipped in Sorba Thomas's low corner.
S60 has been a happy hunting ground over the years for the Terriers who began the contest unbeaten away to Rotherham since 1992, a run stretching to ten matches.
It was a 12.30pm start and the early-afternoon sun was beating down on the stadium as both sides fought for the upper hand in an even contest.
Rotherham were without striker Chiedozie Ogbene so Tom Eaves and Washington were the pairing up front.
Wing-backs Brooke Norton-Cuffy and Cohen Bramall dropped to the bench, which meant starts for Wes Harding and Shane Ferguson on the flanks, while skipper Wood came back into the defence after being rested last week at Blackburn Rovers.
Midfielder Jamie Lindsay missed out after suffering a face wound that required stitches in a midweek reserve outing.
Eight minutes after the restart, Viktor Johansson produced a flying save to keep out Ben Jackson's piledriver and was relieved to see an offside flag rule out Jordan Rhodes' headed follow-up.
The cheers were still ringing out for Kelly's introduction when Johansson excelled again, diving sharply and holding on to Duane Holmes' low shot.
They were ringing out much louder within three minutes as the substitute made an instant impact, forcing the ball home in front of an ecstatic kop to restore the home team's lead.
Dan Barlaser's cross had been headed into the danger zone and Kelly was the fastest to react.
With ten minutes to go, he was in the thick of things again, testing Nicholls with a fierce drive from a tight angle.
Cohen Bramall survived a penalty appeal when Jack Rudoni tumbled in the Rotherham box.
It was to be Huddersfield's final threat.
This was the Millers' day, Taylor's day, Georgie's day.
Rotherham (3-5-2): Viktor Johansson; Grant Hall, Richard Wood, Lee Peltier (Cameron Humphreys 67); Wes Harding, Ben Wiles, Dan Barlaser, Ollie Rathbone, Shane Ferguson (Cohen Bramall 67); Conor Washington (Hakeem Odoffin 89), Tom Eaves (Georgie Kelly 58). Subs not used: Josh Vickers, Jamie McCart, Brooke Norton-Cuffy.
Huddersfield (3-4-1-2): Lee Nicholls; Tom Lees, Michal Helik, Yuta Nakayama; Sorba Thomas, David Kasumu (Charles Ondo 84), Etienne Camara, Ben Jackson (Aaron Rowe 67); Duane Holmes (Connor Mahoney 67); Danny Ward (Jack Rudoni 67), Jordan Rhodes. Subs not used: Nicholas Bilokapic, Ollie Turton, Brodie Spencer.
Goals: Washington 25, Kelly 61 (Rotherham); Ward 29 (Huddersfield).
Referee: Jeremy Simpson (Lancashire).
Attendance: 11,006 (2,225).