It was very much on this weekend between Louis Tomlinson and Tom Parker.
The One Direction member and Wanted artist battled back and forth on Twitter, reportedly because the former brought up the latter's band during a show in London.
We'll simply rundown the feuding Tweets below and then ask readers to choose the winner.
“@Louis_Tomlinson you even talk about us at your own gigs. Are you that upset you didn’t get in this band?"
“@TomTheWanted Pal, we both know I wouldn’t waste my time auditioning for your band. You humour me with your bad boy persona."
“Uh oh . @tomthewanted The Wanted’s Tom Parker: My failed X Factor audition shattered me | http://metro.co.uk/2011/07/04/the-wanteds-tom-parker-my-failed-x-factor-audition-shattered-me-64958/ … via @MetroUK”
“@Louis_Tomlinson you were too busy “wowing the judges” with THIS http://m.youtube.com/watch?v=MjHRvoPFHrI … #louisgottalent #nicework”
“Yes @Louis_Tomlinson, I don’t need to call producers to beg my way on to a track over my “friends” #crybaby #loyalty #louisgottalent”
“@TomTheWanted Interesting you have to entertain your many followers with lies. I actually think you could be the biggest twat on twitter.”
“@TomTheWanted why don’t we make your next single our movie soundtrack ?”
"Hmm @Louis_Tomlinson I’d love to make the soundtrack to Mean Girls 3″
“@TomTheWanted not a bad idea actually maybe @maxthewanted could ask Lindsay?”
“@TomTheWanted P.S enjoy the press from this .”
“@Louis_Tomlinson I’ll enjoy the press even more when you come clean #narnia #itgetsbetter”
“@TomTheWanted You clearly spend too much time on twitter. Funny that face to face you act like a little girl. Goodnight old friend.”
So... who won this Twitter war?