Haaland scored again, and Schjelderup leapt up again.
Heading in the go-ahead goal in the 79th minute and scoring again before the end of regulation time, Haaland put Norway on his back and carried them into the World Cup quarter-finals for the first time with a 2-1 defeat of Brazil on Sunday that showcased the towering striker on soccer's biggest stage.
"Maybe this will write history in Norway," Haaland said in New Jersey.
"Everyone just need to enjoy themselves. This is just an insane day. It's one of the most insane days in Norwegian history. Just enjoy it, embrace it and enjoy the moment."
Neymar, who is 34, scored a late consolation goal then said this was his final game playing for Brazil's national team.
"I tried," Neymar said.
"It started here at MetLife Stadium, and I finished here. It is now over."
After being a non-factor for much of the afternoon and having limited touches, Haaland spoke at the second-half hydration break with coach Stale Solbakken, who told him to drain his energy and go for it.
Haaland turned it on when it mattered most, getting the right side of his head on the ball after a perfect set-up by Andreas Schjelderup, who entered at halftime.
Haaland scored a little over minutes later for his seventh of the tournament, through Danilo's legs to tie Argentina's Lionel Messi and Kylian Mbappé of France in the race for the Golden Boot.
"It felt it was a gift from God that it actually went into the net," Haaland said.
Haaland scored in his 14th consecutive competitive match internationally, a stretch featuring 27 goals. He has 62 goals in 54 games with Norway.
At the other end, goalkeeper Orjan Nyland was stellar. He made a crucial stop early, diving to his left to deny Bruno Guimaraes' penalty kick in the 14th minute, then got his left hand on a shot by Endrick late when Norway was hanging on to a one-goal lead.
The only goal Nyland allowed was to Neymar on a penalty kick late in stoppage time, which changed just the final score.
Norway's women's team won the World Cup in 1995, but the men have only qualified four times and not since 1998. They had not gone further than the round of 16.
"I think that all Norwegian citizens are experiencing the night of a lifetime," Solbakken said.
"Some people say that we have changed Norway forever. Probably, they will party for a week or so."
It was Brazil's seventh consecutive loss to European opponents in the knockout round at the World Cup, dating to beating Germany in the 2002 final.
Brazil's fans were stunned silent when the now-famous Viking Row returned after the game, with Haaland banging the drum and leading the celebration.
"I've peaked a couple of times during this tournament, but this was a new peak," Haaland said.
Also in the sellout crowd of 80,663 were rapper Jay-Z, comedian Chris Rock, actor Woody Harrelson, actress Sofía Vergara and basketball player Jalen Brunson of the NBA-champion New York Knicks, who elicited a healthy roar when he was shown on video screens.
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