"Willow" is the lead single from Taylor Swift's ninth studio album "evermore" released on midnight of December 10.
Swift, who is nominated for six Grammy Awards this year, described "evermore" CD as the sister of her eight album "folklore" released in July.
"To put it plainly, we just couldn’t stop writing songs. In the past I’ve always treated albums as one-off eras and moved onto planning the next one after an album was released. There was something different with folklore. In making it, I felt less like I was departing and more like I was returning,” the singer said who will turn 31 on Sunday, Dec. 13.