Raising almost 5 million Australian dollars ($3.5 million), the Rally for Relief gave the capacity crowd of more than 15,000 fans the opportunity to see the lighter side of the world's best players.
Roger Federer, Nick Kyrgios, Rafael Nadal, Serena Williams, Naomi Osaka, Novak Djokovic, Caroline Wozniacki, Stefanos Tsitsipas and Alexander Zverev all contributed their time and skills to the initiative.
'This was definitely an incredible kick off.
The 21-year-old set the tournament alight with a run to last year's semi-finals which included a brilliant fourth-round upset of his idol Federer.
He then addressed fans in the stands saying: 'You guys too, because of you coming to the stadium tonight, that has also helped.
The first Grand Slam of the year will be played in Melbourne, Australia from January 20 to February 2 where several superstars from all over the world will compete to showcase their talent and win the ultimate prize.
'You guys as a country.you guys are the way to do it, you all come together for other people and I think that's a true inspiration for other countries around the world watching this right now'. Kyrgios said about the top three's presence at the charity event.
With select firefighters and emergency personnel looking on from courtside seats, Kyrgios saved two set points before Federer prevailed in an entertaining encounter.
Australian Open organizers released the policy Friday, three days before the beginning of main-draw action, following complaints from some players who questioned whether qualifying matches should have been held this week even though Melbourne's air quality was among the worst in the world because of smoke arriving from fires about 100 miles east of the city.
But a competitive hit-out wasn't really his goal, he said.
"Obviously indoors is not good either but fast hard court is not a great surface for him because everybody else, they enjoy playing against Nadal on a fast hard court".
"It's been an emotional couple of weeks".
'I've got goosebumps. everyone came together and it's just an incredible feeling, ' Kyrgios said. "I just want to have a little fun out here tonight and hopefully we can overcome this".
Australia's devastating bushfires have claimed at least 28 lives, destroying over 2,000 homes and razed millions of hectares of wilderness.
The ATP on Sunday pledged 500,000 USA dollars to the World Wildlife Fund (WWF) Australian Wildlife and Nature Recovery Fund as part of the bushfire relief efforts.