Mohamed Toure continued his stunning start to life on loan at Norwich City as his side secured a 3-1 FA Cup win over West Bromwich Albion.
The Australian striker, who signed from Danish club Randers a fortnight ago, made it five goals in three appearances in the space of a week, heading in the third goal in added time.
The Baggies showed some of their recent improved form with a second-half fightback as Josh Maja equalised, but Ben Chrisene scored his second goal against them this season to edge the Canaries back in front.
Norwich had looked to be in full control at half-time as new signing Paris Maghoma, making his first start, capped a sparkling performance with a headed goal to give his side the lead.
With top goalscorer Jovon Makama out following foot surgery and Josh Sargent still in limbo after refusing to play last month, Canaries fans might have wondered who would provide the goals to put them into the fifth round of the cup.
Their questions were answered emphatically, with Maghoma opening his account with a smart header after Harry Darling nodded Jacob Wright's corner back across goal in the first half.
With Josh Griffiths denying Mathias Kvistgaarden three times in the opening 45 minutes, the Canaries put on a show which had their fans chanting about "sexy football".
Their performance was a far cry from October, when a 1-0 loss to the Baggies in the league at Carrow Road began a run of six consecutive defeats.
Things have improved in recent weeks, but the Baggies have also shown signs of ending a dismal spell and they saw Maja twice tuck the ball away, however the first was ruled offside.
West Brom boss Eric Ramsay replaced the injured Griffiths with the side's usual number one, Max O'Leary, at half time, who brilliantly denied Wright after Oscar Schwartau's barnstorming run took him three-quarters of the length of the field.
The visitors exerted control as the Norwich momentum waned and Maja dashed onto Ousmane Diakite's through-ball and expertly chipped goalkeeper Daniel Grimshaw to level the score.
Norwich had been contrastingly average in the second half but they pieced together another flowing move with eight minutes left to reclaim the lead.
Wright fed Ben Slimane, and he moved it on to fellow substitute Chrisene, who arrowed the ball into the bottom corner.
The goal took the wind out of Albion, and Slimane conjured up a third goal in added time, juggling the ball and then heading it into the path of Toure.
The striker, who opened his account on debut against Blackburn last week before adding a hat-trick in midweek against Oxford United, finished with a close-range header.
Norwich head coach Philippe Clement told BBC Radio Norfolk:
"We deserved to win it. In the first half we were totally dominant, and scored one good goal, but it should have been two or three. In the second half we were also dominating but when a few players got a little bit tired West Brom came into the game.
"They scored a goal from a transition, not that they were outplaying us or creating chances, and then it's important to stay calm and continue doing what we've been doing. That's the big step the team has made - a few months ago they would have become nervous, and so would the stands, but nobody felt we would lose this game, not on the pitch and not in the stands.
"We could kick on by bringing on fresh players who have played a lot in the last couple of months and have rhythm."
On Paris Maghoma: "I told him and Ali [Ahmed] at half time that I don't want a circus, I want an efficient team that kills off games. I am really pleased to see him score with the head."
West Brom head coach Eric Ramsay told BBC Radio WM:
"I'm really disappointed to lose the game, particularly given how the second half went, and how we felt that we grew into the game and played with some real authority for a large portion of that second half.
"I felt strongly before the game that, irrespective of the outcome, we had to come out feeling positive across a number of other elements and there were strong performances from the young players Ollie [Bostock], Harry [Whitwell] and from Hindo [Mustapha] and we had to feel that we were nudging players towards 90 minutes fit.
"The guys that haven't been able to hit 90 minutes all that regularly so far this season. The fact we've done that across the board is pleasing.
"We weren't happy with the first-half performance. There wasn't the level of aggression and competitiveness that we would have expected and we lacked control on the ball. That was entirely different in the second half."