Ashleigh Barty beat Danielle Collins to win the Australian Open title, ending the home nation's 44-year wait for a Grand Slam women's singles champion.
Top seed Barty fought back from 5-1 down in the second set to win 6-3 7-6 (7-2) on a jubilant Rod Laver Arena.
The 25-year-old Queenslander has won the title without dropping a set in Melbourne this fortnight.
After winning the 2019 French Open and last year's Wimbledon title, she has now claimed three of the four majors.
With a partisan 12,000 crowd and nation watching on, Barty started and ended the final looking unburdened by the weight of expectation.
Among those watching was Chris O'Neil, the last Australian to win the men's or women's singles title in Melbourne.
Barty, rarely overcome by emotion, shouted with delight when she clinched the title with a cross-court forehand winner.
Virtually everyone inside Rod Laver Arena jumped to their feet, roaring their approval, many with camera phones in their hand to capture a long-awaited moment for the nation's sports fans.
The world number one's relief at overcoming the burden of history and expectation was clear.
Barty clenched both fists as she dropped to her haunches, before running over to the side where she beckoned former doubles partner Casey Dellacqua, now a television analyst, on to court for a warm hug.
After reaching the Melbourne semi-finals in 2020, with quarter-final defeats coming in the years either side, Barty finally landed the prize she really wanted.
The 25-year-old Queenslander had dropped only 21 games on her way to the final and, although the second set looked to have got away from her at two breaks down, she regained her composure brilliantly to turn the match back in her favour.
Victory continued her supreme form in 2022, and she has now won all 11 of her singles matches this year.
After beating three top-20 players to win the Adelaide International title, she has continued that dominance in Melbourne.
Barty, who took a break from tennis in 2014 to pursue a professional cricket career, has often paid tribute to Dellacqua's influence on her success and the kiss on her friend's forehead indicated her gratitude.