The first wave of matches was highlighted by Victoria Azarenka playing against Johanna Larsson.
Azarenka is the two-time defending champion at the Australian Open - her first two Grand Slam titles.
The World No.2 had some support from the box in the form of Redfoo, formerly of the band LMFAO.
And she did him proud, winning a tight first set then rolling against the very talented Larsson.
Caroline Wozniacki had no trouble in her match, cruising in straight sets in just over an hour.
Simona Halep put an early exit in Sydney behind her with a routine straight set victory as well.
Yulia Putintseva rose up against another favorite, Agnieszka Radwanska, pushing her to three sets.
But Radwanska was just too much, improving to 2-0 against the Kazakh after a three set 60 57 62 win.
Jelena Jankovic, a former semifinalist at the Australian Open, cruised past Misaki Doi in straights.
Andrea Petkovic, a former quarterfinalist here, wasn't so lucky - she lost to Magdalena Rybarikova.
Meanwhile, Julia Goerges visited the WTA booth on site, meeting fans and posing for pictures with them.
A day earlier, Goerges scored one of the biggest upsets of the week so far, beating Sara Errani.
Belinda Bencic, who reached the second round here and will play Li Na, hit the Melbourne Aquarium.
Bencic was the second-youngest player in the draw - Li beat the youngest player in the draw first round.
Evonne Goolagong-Cawley posed for a photo with children from The Goolagong National Development Camp.