Taylor Swift is revealing what Travis Kelce said to her before proposing in August.

The Grammy winner, 35, joined host Jimmy Fallon during the Monday, October 6, episode of The Tonight Show, stepping onstage in a metallic sequined minidress and sparkly platform heels. She briefly spoke about her brand-new album, The Life of a Showgirl, before Fallon, 51, congratulated the pop star on her recent engagement to Travis Kelce after two years of dating.

“Taylor, that is insanity,” Fallon said, admiring the massive diamond ring that Kelce, 36, slipped on Swift’s finger.

“It’s crazy,” she said of her ring, explaining that Kelce “had it for a really long time before he gave it to me, too.”

Swift confessed that she looks at the ring “constantly. Like, it doesn’t feel in any way normal for me. I’m just sort of like, ‘Oh, man!’”

She sang her fiancé’s praises, gushing, “He’s just my favorite person I’ve ever met — no offense to everyone else. But the fact that this is the person that I get to hang out with every day forever … that’s the whole thing of it. You look at [the ring] and you’re like, ‘I get to hang out with him forever,’ and this represents that.”

When Fallon mentioned the timing of the proposal — how Swift and Kelce got engaged soon after she recorded an episode of the NFL star’s “New Heights” podcast — Swift replied, “I think, for Travis, the podcast was just sort a distraction, sort of ruse, to keep me not looking out the windows of the house.”

She explained, “Every time he does the podcast, it’s not like he blacks out all the windows.”

However, ahead of Kelce popping the question in a lavishly decorated backyard setting, Swift recalled there were “fully, like, blackout drapes on every single window of the whole house.”

By then, “I kinda realized that he’s walking around sorta nervous about the podcast, [saying], ‘My heart is racing. … I know how much this means to you. I just really want this to be what you’d hoped it would be.’ Because we’d been talking about doing the podcast and announcing the album. And he’s like, ‘My heart’s just racing.’ I’ve never seen this dude nervous. Ever. He’s professionally not a nervous person.”

Swift recalled Kelce asking, “Do you wanna go and just walk around the backyard and have a glass of wine?” She responded, “I’m always gonna wanna do that.”

At that moment she realized “why all the windows were curtained and why he was nervous,” she said. “It was the best possible-case scenario.”

While Swift has been busy with the release of her 12th album, she’s enjoying life with her husband-to-be — and gleefully showing off that ring. As for Kelce, he publicly discussed his proposal for the first time in a September interview with Erin Andrews.

Kelce added that Swift has “brought excitement and a joy for life that made me a better man, made me a better person and made me just that much more comfortable than who I am.”