Taylor Swift Teases Zayn Malik Collab In Birthday Message

(Radio.com) "HAPPY Z DAY." That's the birthday message Taylor Swift left on Instagram for the now 24-year old Zayn Malik last Thursday (Jan. 12). The note may offer a sneak peek of a new project the pair have been working on.

The two pop superstars teamed up for a track on the Fifty Shades Darker soundtrack, and there is speculation that the image accompanying the post features a still from a music video for their song, 'I Don't Wanna Live Forever." And just last week reports surfaced that the two had damaged a London hotel room during the making of a video.

Malik recently credited his girlfriend Gigi Hadid for initiating the collaboration with Swift. In a radio interview, the former One Directioner shared, "The interesting thing was she's actually friends with Gi, so she already reached out because [producer] Jack [Antonoff] had just played her the song anyway. She mentioned to me that she liked the song so I already kind of knew in the back of my head that she liked it so I asked her if she wanted to be on it and she was cool with it." See the post here.