Taylor Swift's new song "Shake It Off" has left everyone wondering. Several media outlets are speculating that she is either referring to her ex boyfriends or haters in the song. According to a latest report, the latest single by the songstress is specifically about her long-term ex boyfriend and One Direction hunk Harry Styles and his ex girlfriend and "KUWTK" star Kendall Jenner. Read on to find out the details.

"Cause the players gonna play, play, play/And the haters gonna hate, hate, hate/Baby I'm just gonna shake, shake, shake/ Shake it off..." Taylor Swift sings in the first single from her latest album "1989" that she released on Aug. 18, 2014.

A source told Hollywood Life that Taylor Swift "makes an undercover mention" of reality star Kendall Jenner. The 18-year-old model happened to date Swift's 20-year-old ex beau Harry Style after he broke up with the songstress.

A source told the publication that Taylor Swift has "a line that is very specific to Harry." The line reportedly the source is referring to "talks about her ex bringing his new girlfriend that's Harry and Kendall."

The celebrity news website suggests that the part where the diss is hidden goes like this: "My ex man brought his new girlfriend/ She's like 'oh my gosh' i'm just gonna shake..."

Cambio, another celebrity news publication, also speculates that the songstress "disses her ex boyfriend Harry Styles in it."

Meanwhile, TIME is reporting that in the song "Shake It Off" Taylor Swift "dismisses" people who are not too fond of her by talking about "everything that make her unlikeable."

Another report by Hollywood Life suggests that "Shake it Off" is one of many other songs by Taylor Swift about her ex flames. A source told the publication that besides Harry Styles and Kendall Jenner, she is also talking about actor Jake Gyllenhaal.

The source claims that the "Prisoners" actor Jake Gyllenhaal was a "big inspiration" for Taylor Swift's "Shake it Off." The report suggests that it refers to the "head games and lies" that she probably experienced for the first time. Jake Gyllenhaal reportedly dated the songstress in the year 2010 and dumped her the day she turned 21. Who do you think Taylor Swift is actually talking about in "Shake it Off?" Is it Harry Styles and Kendall Jenner or just Jake Gyllenhaal?