Bryan even joked days ahead that the ACM Awards would unite Democrats and Republicans.
The 52nd annual ACM Awards will air from the T-Mobile Arena.
Lambert, 33, defeated the following nominees for Female Vocalist of the Year: Kelsea Ballerini; Maren Morris; Kacey Musgraves, who appeared on Season 5 of Nashville Star; and Carrie Underwood, who was crowned the victor of American Idol's fourth season.
"I might just now be getting in bed (not kidding), I might also have swollen knees and cankles (thick ankles), and I might have taken a selfie, but can't you see that we had SO". However, the queen of country lost these categories to Florida Georgia Line, Thomas Rhett, and Artists of Then, Now & Forever, respectively.
While on stage accepting the album of the year trophy with Lambert, legendary producer Frank Liddell took to the microphone with a few words of wisdom aimed at aspiring writers.
"With each passing year, I think you get a little more savvy, a little better, and you remember when something kinda worked, and when something really worked..." the Entertainer of the Year nominee says. We've watched country stars like Carrie Underwood and Miranda Lambert grow and evolve into the super successful artists they are today.
Aside from Miranda Lambert, other ACM Award performers include Luke Bryan, Lady Antebellum, Maren Morris, Rascal Flatts, Carrie Underwood and Keith Urban, so be sure to tune in!
Double winners Sunday night included Miranda Lambert, Thomas Rhett, Florida Georgia Line and Brothers Osborne. Two hours later, the Nashville native unseated Stapleton as the academy's top male vocalist.
- New vocal duo or group of the year: Brothers Osborne.
Sam Hunt performed his No. 1 hit, "Body Like a Back Road", and he went into the audience to sit next to his fiancé to sing the song.
The 33-year-old country singer performed her song "Tin Man" and she had a big night as she also won the awards for Female Vocalist of the Year and Album of the Year for The Weight of These Wings.
Little Big Town won vocal group of the year, beating out Lady Antebellum. Brown's new single, "What Ifs", from his self-titled debut album, features his former schoolmate and fellow choir member at LFO.
Lori McKenna, who wrote "Humble and Kind", received the Songwriter of the Year honor.