After the couple's adorable night at the Billboard Music Awards in Las Vegas -- where Joe and his brothers performed in their first awards show since announcing the JoBros reunion earlier this year -- it seems they hit up a local wedding chapel to tie the knot.
The first hint at the festivities came on Diplo's Instagram Story, where the DJ shared a clip of Turner in a white dress, entering a Vegas chapel with Jonas and his brothers, who were dressed in suits. "Gonna hit up this wedding real quick," Diplo captioned the clip. ET confirmed the union with a copy of the couple's marriage license, which was signed on Wednesday.
Later videos from Diplo's Instagram showed the Game of Thrones star walking down a short aisle, surrounded by friends and fellow BBMA attendees, like singer Khalid. The actress' bridal ensemble was completed with a veil and blinking bouquet, as country stars Dan + Shay played their hit "Speechless."
Diplo also went live on his Instagram story, showing the couple reciting their vows to one another in front of an Elvis impersonator.
Turner -- who announced her engagement to Jonas in October 2017-- spoke with ET about her upcoming wedding at the Game of Thrones premiere last month, joking about what co-star and BFF Maisie Williams would be wearing on her big day.
"I don't know why she's thinking about [what she's wearing to my wedding]. I'm giving her the bridesmaid dress!" she said with a laugh. "She's my maid of honor! One of two."
See more on what the couple has said about their wedding plans in the video below!