The country artist was the winner of the biggest honor of the night, taking home the 2019 GRAMMY Award for Album of the Year for Golden Hour.
Emotionally taking the stage, Musgraves -- wowing in a bright red voluminous mini dress -- was shocked to hear her name called.
"I don’t even know what to say," the brunette beauty said, adding that everyone in the category had amazing albums. "I am very thankful and winning doesn't make my album any better than anybody else's in that category. They are all so good."
She also thanked her team and her husband, Ruston Kelly, as well as her fans.
Golden Hour beat out Cardi B's Invasion of Privacy, Drake's Scorpion, H.E.R. by H.E.R., Post Malone's Beerbongs & Bentleys, Dirty Computer by Janelle Monáe, Black Panther: The Album and By the Way, I Forgive You by Brandi Carlile.
Musgraves had a phenomenal night, sweeping all four categories that she was nominated in. She also won Best Country Album, Best Country Song for "Space Cowboy" and Best Country Solo Performance for "Butterflies."
The country superstar also performed during the Dolly Parton tribute, as well as sang her own song, "Rainbow."
Musgraves also looked gorgeous in a nude tulle gown from the Valentino Haute Couture Spring 2018 collection while on the red carpet.