"@thesilverfoxsatx three of your bouncers just jumped me for no reason whilst I was grabbing my ID I took pics of the whole thing look forward to seeing you in court," wrote Liam.
In the video - which has been obtained by TMZ - Liam is seen yelling at the bouncers because they wouldn't let his girlfriend Maya Henry (who is under 21) into the bar.
Just a quick aside, 21 years old is the legal drinking age in the United States.
According to Us Weekly, Liam and Maya were originally allowed to enter the bar, but after they briefly stepped outside the bouncers stopped Maya from re-entering.
Eyewitnesses told TMZ that the One Directioner attempted to force his way into the establishment, and was then accidentally pushed to the ground by the security.
The video then shows Liam yelling at the bouncer: "Don’t f**king push me again! I swear to God I’ll lay your a*s out!"
Maya - who's a model - eventually pulls Liam away from the fight, and TMZ allege that no police were called to the scene.
We love you Liam, but this definitely doesn't look too good...