Louis Tomlinson has never been one to stay quiet about something he's passionate about, especially if it comes to defending his One Direction past.
And nobody loves to diss One Direction more than former member Zayn Malik.
Zayn has just released a new single, "Good Years" which has riled up Louis and 1D fans alike.
"I'd rather be anywhere, anywhere but here," the lyrics read, most likely referencing before Zayn quit the band.
Well, Louis wasn't impressed!
"Proper confused. What a hypocrite!" he tweeted.
"Anywayyyy just signed off on the final production of something I'm very excited about :)" he continued. "Also have to say X Factor was such an amazing experience! Can't believe it's over. Thank you to the whole team and all the contestants."
The lyrics continue: "Too much drugs and alcohol. What the hell were we fighting for?"
"Cause now the whole damn world will know. That we're too numb and just too dumb to change the story."
Fans were quite literally shook by the song and Louis' response.
One person tweeted: "Im really not ready for 2015 drama all over again but at the same time,, at least it would be an interaction."
"Louis please dont fight like this.. Zayn is your brother. Please don't spend hatred towards others and be best brothers like before. All we need is a reunion."
Another fan commented: "Drama here drama there drama everywhere."
You can listen to Zayn's new song "Good Years" below: