"Family," Levine, 36, wrote on Thursday, Nov. 5. "(Blake is the stepbrother)." In the sweet selfie, which Levine previously shared via Instagram, the trio appear to be on a tarmac at the airport. The Maroon 5 frontman makes a silly face while Shelton, 39, and Stefani, 46, lean into each other for the close-up.
Us revealed on Thursday, Nov. 5, that the snap was taken in Shelton's home state of Oklahoma. Stefani posted a separate snap from the airport — but Levine was hilariously cropped out.
The No Doubt singer's rep confirmed to Us on Nov. 4, that she's been romancing Shelton since her split from ex-husband Gavin Rossdale. "Gwen and Blake are longtime friends," her rep said at the time, "who have very recently started dating."
As previously reported, the announcement came just one hour before Shelton's ex-wife Miranda Lambert walked the red carpet at the 2015 Country Music Association Awards in Nashville. Shelton also attended, but the two didn't appear to interact. Following the show, Shelton and Stefani went public and were photographed holding hands at the Warner Music Group CMA afterparty.
"Awesome night tonight," Shelton tweeted Wednesday. "So many great things happening in my life."
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