Taylor Swift has dropped her second unreleased track - and fans have all warned Joe Jonas to stay off the internet for a few days.

Mr Perfectly Fine was a track meant for the 2008 album Fearless but ended up on the cutting room floor.

At that time, many of the tracks on the album were about Joe, whom Taylor had dated for several months in the summer of 2008.

WATCH: Mr Perfectly Fine was released on Wednesday

Now, Taylor has now chosen to add six of these older tracks to the upcoming Fearless: Taylor's Version and Mr Perfectly Fine was released on Wednesday.

"Taylor really sent Joe Jonas a present/baby present because she knew Fearless (Taylor's Version) was coming," joked one fan as another added: "Okay Mr Perfectly Fine is so savage?? I can't stop laughing at the way she obliterated Joe Jonas.

"She is a comedian. Poor guy couldn't have seen this coming."

Taylor and Joe dated in 2008

"Joe Jonas will never be free," tweeted another fan.

But even Joe's wife Sophie Turner got in on the action, taking to Instagram Stories to share the new track and added: "It's not NOT a bop."