WATCH: Stars unite for Rally for Relief exo in Australia

In response to the deadly bushfires raging across Australia, all the biggest names in tennis came together to raise money via what'll certainly stand as the most star-studded event of the year.

On Rod Laver Arena on Wednesday, Serena Williams, Roger Federer, Coco Gauff, Rafael Nadal, Caroline Wozniacki, Novak Djokovic, Naomi Osaka and many more participated in the Rally for Relief exhibition, helping to boost Aces for Bushfire Relief's total amount raised to a reported 4,826,014 Australian dollars.

Aces for Bushfire relief partners with the Australian Red Cross, which has been providing food, water and other assistance to those affected by the fires.

The exhibition saw all kinds of fun combinations of players facing off, with a rotating mixed-doubles team event ...

In which Gauff did some heavy lifting ...

While Osaka was called on for a hug ...

There was also a singles set between Federer and Kyrgios, the latter of whom got the fundraising movement going at the beginning of the year by pledging money for each ace he'd hit during the Australian swing.

Team Williams, which included Serena, Nadal, Djokovic, Petra Kvitova and Dominic Thiem, won the doubles set in a tiebreak, defeating Team Wozniacki's Gauff, Osaka, Alexander Zverev and Stefanos Tsitsipas. Also in a breaker, Federer beat Kyrgios, 7-6 (6).

"This was definitely an incredible kickoff," Federer said. "We hope to not do this every year, but if we have to, the players will be here."