Camila Cabello offers a surprise serenade for a bride and her dad at Iowa wedding

Two years before she tied the knot, Kelli Elsen already knew what song she wanted playing at her wedding during her father-daughter dance: “First Man,” by Camila Cabello

Two years before she tied the knot, Kelli Elsen already knew what song she wanted playing at her wedding during her father-daughter dance: “First Man,” by Camila Cabello.

But Elsen, who got married near Iowa City, Iowa, earlier this month, never could have planned for how that special moment actually unfolded.

The night before her wedding, Elsen and her family were in a hotel — and so was Cabello.

Singer Camila Cabello, from right, addresses Kelsi Elsen and her father at Kelsi's wedding recently.Obtained by NBC News“I told my mom, I’m like, ‘Should I go say something?’ and she’s like, ‘Yeah, Kelli, everything happens for a reason. You always say that,'" Elsen recalled.

She said she walked up to the entertainer and introduced herself and told her about her plans for her father-daughter dance.