Fans are excited to hear that Taylor Swift has collaborated with former One Direction singer Zayn Malik to record a sexy duet for the upcoming film Fifty Shades Darker.

According to LA Times, the song is titled "I Don't Wanna Live Forever". Taylor also shared a teaser clip of the song with hashtags #fiftyshadesdarker and #idontwannaliveforever on her Instagram account.

Within an hour after sharing the teaser, the single acquired number one position on the iTunes chart. The "Shake it Off" singer immediately shared the success story on Instagram with the caption, "Well that escalated quickly."

As per Hello! Magazine, the song has been produced by Lena Dunham's partner Jack Antonoff, while the lyrics were penned down by Taylor, Sam Dew, and Jack Antonoff.

Talking about the track, Jack stated on Twitter,"I Don't Wanna Live Forever came together very quickly. Wrote it with Taylor and Sam Dew and produced it at home ... Recorded Taylor at my house"

"Zayn sent parts from LA - we did it in a week basically. I've never had something come out that quick. Loved making this song with Taylor, Sam and Zayn," he added.

The scenes along with the song teaser featured Jamie Dornan's character Christian Grey and Dakota Johnson's character Anastasia Steel spending romantic time with each other.

Meanwhile, Fifty Shades Darker" Trailer 2 is also out, and this one is much racier than the previous trailer. Trailer 2 depicts Christian Grey and Anastasia Steele having sex in the shower or getting naughty in a crowded elevator. This has teased fans imagination about what to expect from the movie.

Previously, Parent Herald has reported that when the "Fifty Shades Darker" actor was asked about whether he had any nude scenes in the sequel or not, Jamie Dornan said he is not quite sure yet. However, he added that there were many scenes in which he had to go complete nude while filming the sequel, but he is unsure if those scenes will ever make it to the final cut or will be censored.

Fifty Shades Darker is set to hit the theatres in February 2017.