The singer joked that if Blake and Stefani do get married, they better do it fast.
During a chat with Entertainment Tonight, the American Idol judge also managed to throw a few jabs in at his country music pal, saying that he should put a ring on it sooner than later before Stefani finds herself a more attractive man.
Her win in that category helped her set a different record - even before Sunday's ceremony, Lambert had won Female Vocalist of the Year more times than any other artist. "Every time I meet Gwen, she's holding her phone way out here to read". The sentiment is similar to Lambert's Album of the Year acceptance speech in 2017, when she said, "I just want to say thank you for letting me use my heartbreak and sharing that with me".
This isn't the first time Bryan commented on Shelton's girlfriend. "I would be honored to marry Blake and Gwen".
Lambert hit the milestone when she won Song of the Year for "Tin Man" during the 53rd Annual Academy of Country Music Awards in Las Vegas on Sunday, bringing her total trophy count to 30 and breaking the tie she held with Brooks & Dunn.
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The couple have been together since November 2015.
As for any future decisions leading to her becoming Mrs. Shelton, Stefani didn't give a direct answer.
But Stefani was front and center when her boyfriend took the stage to perform "I Lived It".
"It's all about the heart, and he has that big ol' huge heart in there, so he's quite an attractive human".
"I think about [marrying her]".