The ladies of Litchfield might be facing dark times on Orange Is the New Black, but stars Lea Delaria, Yael Stone and Danielle Brooks were living it up in Australia this week. While in town for the annual Sydney Gay & Lesbian Mardi Gras, the crew surprised one of their biggest fans on one of the most important days of their lives: their wedding day! That's right, the actresses crashed a fan's wedding and cameras were there to capture the awesome moment in full.

"Me @yaelstone and @daniebb3 crashed a wedding down under, in fact I sang for the brides and danced with everybody. F--KING LIVING IN OZ," DeLaria wrote on Instagram.

According to a Facebook video posted by Netflix, the major surprise was orchestrated by bride-to-be Tegan who wanted to add a special touch to her upcoming nuptials with her partner Louise, and since Louise is a huge OITNB fan, what better way to treat her than to invite the cast?! Judging by Louise's joyous reaction, the surprise visit certainly paid off.

The festivities included a performance by DeLaria, Brooks congratulating the happy couple and Stone offering some heartfelt words about this memorable moment. "As an Australian, we've waited a long time for this to happen and we're really really proud that we can be here and celebrate you guys individually and celebrate this change across this beautiful country that needed to change," said Stone.

See all the fun-filled photos below!

Though Samira Wiley couldn't make it to the wedding, she did end up reuniting with her on-screen bestie Brooks during Mardis Gras.