If tennis is your thing, you're probably well aware of the goings-on at the Australian Open tennis tournament. If not, you don't know what you're missing.
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It's only been a few days since the year’s first Grand Slam event officially kicked off, but there's already been a lot of cheering, dancing, and cuddling with some of Australia's favorite animals. Oh, and tennis. Lots of tennis.
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Here's a look at some of the more interesting moments of the Australian Open so far.
Australia's Samantha Stosur holds a baby crocodile in the players lounge following her practice session at Melbourne Park.
An Australia supporter celebrates a point during the first round match between Madison Keys of the United States and Australia's Casey Dellacqua.
Serbia's Novak Djokovic and Serena Williams of the U.S. perform the "Gangnam Style" dance during the Kids Tennis Day event before the Australian Open.
Venus Williams of the U.S. holds a baby wallaby named "Lulu" in the players lounge following her practice session at Melbourne Park.
Supporters of Britain's Andy Murray cheer him on during his first round match against Robin Haase of the Netherlands.
Russia's Maria Sharapova is seen in action during a first round match against Russia's Olga Puchkova on the first day of the 2013 Australian Open.
A spectator wears a hat with the colors of the Australian flag as she watches the first round matches at the Australian Open tennis championship.
Japan's Kei Nishikori is pictured with a koala prior to his practice session at Melbourne Park.
Andy Murray's girlfriend watches him win a match on the second day of the Australian Open.
Defending champion Victoria Azarenka of Belarus rests during a training session.
Spectators apply sunscreen as they watch the first round matches at the Australian Open tennis championship in Melbourne.
Switzerland's Roger Federer jokes with SpongeBob SquarePants during the Kids Tennis Day event at Melbourne Park.
Britain's Andy Murray is shielded from the sun during a break in his first round match against Robin Haase of the Netherlands.