An innocent exchange went VERY wrong for One Direction singer Liam Payne last night, when he brought the wrath of the entire Justin Bieber fandom upon himself.

Just hours earlier, the singer had been busy tweeting his long term girlfriend Sophie Smith to let her know he was missing her – but the sweet moment didn't last long! 

The drama started when a particularly crazy Belieber made a comment at Liam's expense, writing, "@Real_Liam_Payne Isn't it kinda depressing for you to know that Justin Bieber will always be more successful than you?"

Liam gets thousands of Twitter notifications every day but this message obviously struck a nerve as the singer soon replied, writing, "@arianasmccann how many times have I been arrested," referencing Justin's less-than-perfect legal record.

That would have been the end of that – if Ariana (and thousands of other Bieber-crazy fans) hadn't continued to plague Liam with insults for the rest of the evening, calling him "pathetic," "a whale" and an "untalented, embarrassing joke."

Ouch.

Even after receiving spades of online abuse, Liam managed to stay relatively cool, posting a series of tweets to try and calm things down.

Unfortunately he didn't act soon enough though as the hashtag #LIAMHASNOCHILL began trending on Twitter almost instantly.

Poor Liam – we bet he'll be staying off Twitter for a while!