Post Malone couldn't contain his admiration for Taylor Swift after collaborating with her on Fortnight, a feature from her latest album, The Tortured Poets Department.

On April 19, the Lover crooner delighted her fans by dropping the captivating video of her first single, featuring the Rockstar singer.

Taking to his Instagram, Malone expressed his praises for Swift in a touching note along with the picture.

He wrote in the caption, “It’s once in a lifetime that someone like @taylorswift comes into this world.”

The Sunflower singer added, “I am floored by your heart and your mind, and I am beyond honoured to have been asked to help you with your journey I love you so much. Thank you Tay.”

NFL player Travis Kelce, who is Swift's boyfriend, expressed his support for her by liking Malone's post.

Shortly after his post the fans rushed to the comment section to show love on their collaboration.

One fan wrote, “I’m so obsessed with this combo.”

Another noted, “the two of your voices together is just.”

The Third remarked, “The most unusual but so genuine partnership in a song.”