Taylor Swift is using her enormous celebrity platform to broadcast the very moment she heard "I Don't Wanna Live Forever" -- her and Zayn's contribution to the Fifty Shades Darker soundtrack -- on the radio for the first time.

"First time listening to it on the radio, I've never heard it before!" Taylor says before lip-syncing her verse into the selfie-styled camera. Elite squad member Gigi Hadid car-dances in the backseat next to her. The novelty of hearing her song on the radio for the first time has yet to wear off, 10-plus years and five No. 1 singles into her career later!

"I Don't Wanna Live Forever" was officially released in early December. Tay and Zayn appear on the soundtrack alongside Halsey, Tove Lo, John Legend, The-Dream, Nicki Minaj, Nick Jonas, Sia and more. 50 Shades Darker hits theaters on February 10, just in time for Valentine's Day.

Taylor Swift's Best Live Vocals

Stars Who Protest Trump's Immigration Ban