Charlie Austin spoke of his delight having netted his first league goal for Albion and thanked team-mates and the club's fans for their support.
The Baggies striker twice came agonisingly close to his maiden Sky Bet Championship goal for the Baggies but was not to be denied in the 71st minute - much to the joy of the majority of the 25,140 present.
Austin added Albion's third after Matheus Pereira and Grady Diangana had put the hosts in control, with a brace from Bluebirds substitute Danny Ward setting up a nervy finale.
But Romaine Sawyers fulfilled a boyhood dream when he netted his first senior goal for the club to secure a 4-2 victory and send The Hawthorns into raptures.
And, speaking post-match, Austin could not hide his satisfaction when reflecting on getting off the mark for Albion.
"All the team had faith in me to score the goal, to get the first one, I just wanted to celebrate with them," he said.
"I wanted them all to come over to the corner, thanks to them for the chances I've had so far, it's just unfortunate they haven't gone in.
"Big thanks to them as well as the fans, they've had belief in me and got right behind me from the start.
"I think they could feel my frustration in the first half but I stuck to task that I had, to score goals, and I'm delighted.
"But the main thing is we got three points and we're top of the league."
You can watch Charlie's full interview with WBA TV above.