The girls came out to play for Courtney Love at the Life Ball in Vienna, Austria on Saturday night -- where the rocker was seen popping out of her extremely tight ball gown while going to an after-party with designer Vivienne Westwood's husband Andreas Kronthaler.

The revealing look was very different from what she showed up to the event wearing, as she hit the green carpet in a low-cut, shimmery red dress that didn't flaunt quite so much decolletage. She paired the dress with giant black earrings, some messy hair and a bold pink lip. 

The annual charity fundraiser benefits the fight against HIV/AIDS, with Love taking part in the event's fashion show.

Other celebrity attendees included Kesha, Bill Clinton, Ricky Martin and Eurovision winner Conchita Wurst, making for one very random guest list.

Which of Love's outfits do you like better? Sound off below!

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