Louis Tomlinson does not like it when someone lies about something. That's why it is not surprising why he is so mad after learning that ex-One Direction member Zayn Malik is debuting solo despite initially saying that he wants to live a normal life from now on.

Tomlinson, who just couldn't hold it in, made snarky comments about his former band member during their March 29 concert in South Africa, Hollywood Life has learned.

It's pretty obvious that there's no bad blood between Malik 22, and Tomlinson, 23. Tomlinson even took some time just to slam Malik during their second concert as a four-piece boy band.

During their concert, Tomlinson took the chance to approach a shy keyboard player just so he could throw shade at Malik.

When the spotlight was on the keyboard player, Tomlinson said, "You're not looking for fame? OH WOW, what a great musician!"

Then, instead of just ending there, Tomlinson continued by dissing Malik loudly as he walked the stage facing the audience. 

"You've let me down, you've let these beautiful people down. What have you done?" Louis said

An insider said that Tomlinson's statement was just a product of the band's disappointment over Malik's decision. The insider even added that they all feel betrayed as of the moment.

"They all feel betrayed by Zayn, but especially Harry. Harry was always his biggest supporter and close friend," a source added.

Then, there's the issue of superiority. The One Direction members are said to be agitated because "they feel like Zayn is acting like he's above them, like he's too good for the band."

Following his departure from One Direction, Malik's producer Naughty Boy leaked the demo for the singer's solo debut single, the BBC reports.

However, the SoundCloud demo was quickly removed online after it received some bashing from Tomlinson and angry 1D fans.

Malik has yet to personally comment on both his alleged solo debut and Tomlinson's snarky comments directed at him.