During the final song of Eden's set, Yearwood surprised the audience to sing an updated version of her classic song "She's in Love With the Boy" with Eden.
Together, Yearwood and Eden altered the lyrics to Yearwood's 1991 hit to reflect Eden and Hoover's love story.
"Love is love. You can't just say it. You gotta mean it," Yearwood said. "So I think we should [sing] this song for you guys tonight, because she's in love with the girl. I'm in love with the boy. Let's just sing it for everybody."
Tonight was a dream! ✨✨ https://t.co/oCF69Tc1AF
— Brooke Eden (@BrookeEdenMusic) June 26, 2021
"What's meant to be will always find a way," Yearwood sang. "She's gonna marry that girl someday."
— Brooke Eden Team (@BrookeEdenTeam) June 26, 2021
In a post on Instagram, Eden explained that it was Yearwood's idea to change the song in honor of Pride Month and Brooke and Hilary's love story.
"Trisha said it best when she said, 'Love is love...you can't just say it -- you have to mean it. Let's sing this song for EVERYONE...she's in love with the boy, she's in love with the girl.' This year marks the 30th anniversary of 'She's In Love With The Boy' and it was Trisha's idea to change it up to celebrate @hilary_hoover and I's proposal, Pride month, and LOVE in general," Eden wrote. "It meant so much to share this moment with @trishayearwood last night, especially on the @opry stage!! This is country music."
Eden announced her engagement to Hoover earlier this year.
PEOPLE reports that each woman popped the question in two separate marriage proposals held nine days apart.
Eden and Hoover met when Hoover began working at Eden's record label.
Eden's trilogy of music videos for "No Shade," "Sunroof" and "Got No Choice" feature Hoover.
"I want people to see a real relationship between two women that no one has seen in any [country music] video," Eden told PEOPLE. "We're not doing anything that's particularly sexual, but it's our natural chemistry where you can just tell that we naturally love each other. You grow up watching videos your whole life of Faith Hill and Tim McGraw, or even Kelsea [Ballerini] and Morgan [Evans] or Maren [Morris] and Ryan [Hurd]. It's important to me as an artist, as a woman and as an LGBTQ woman to feel equal to a straight woman, a straight artist."