In case of an emergency...pass the vodka.

Miranda Lambert's assistant always makes sure the country superstar has a bag of booze at all times.

"My assistant packs -- I call it my nanny bag -- she packs a bag of liquor for emergencies, for meltdowns and things like that," Lambert told Sounds of Nashville.

The nanny bag came in handy recently when Lambert's flight to the ACM Awards was canceled and her tour manager rented the singer and her crew a bus to drive to Las Vegas.

"I'm like okay, we're good, I'm golden. We just need a cooler of ice and we're going. It was fun."

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The "Vice" singer recently opened up to fans about a time she relied a little too much on alcohol.

"I got divorced so I started drinking a little extra," she said during a January concert before singing her song "Ugly Lights."

"I found myself in Midtown in Nashville three nights in a row at like last call and with the lights coming on, and I'd be sitting there," she said of the inspiration behind "Ugly Lights." "So I wrote a song about it."

Lambert won album of the year and female vocalist of the year at this year's ACM Awards which took place Sunday night.