In Australia, it's not a question of if the shoe fits. It's how much beer the shoe fits.

The rapper Post Malone chugged Bud Light nightly from sneakers thrown onstage by fans throughout his Australian tour this month. Country singer-songwriter Kacey Musgraves sipped tequila daintily from a glass slipper in Melbourne last week.

It's called a shoey, and it's a trend that's thriving — or festering, depending on your stance — in Australian live music, as well as popping up at sporting events.

"We were told that shoeys were an Aussie tradition," Jeffrey "Smitty" Smith, Post Malone's DJ, said in