If there's one person that comes to mind when thinking of a celebrity with a controversial past, it's surely Chris Brown - although, maybe controversial is a little bit of a kind way of putting it. This is the man who put his girlfriend in the hospital, after all.

But for a man who's already got a pretty low standard when it comes to respecting others, Brown has still managed to shock the internet. His latest escapade, though less violent, is still indicative of his incredibly problematic view of women. This time, Chris Brown has shocked the internet by trolling his ex-girlfriend's Instagram - in a, quite frankly, terrifying way. Luckily, the internet has banded together on this one, and are refusing to let Brown get away with it.

Chris Maurice Brown is an American singer, songwriter, actor, and dancer.

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Born in Tappahannock, Virginia, in 1989, he made a big name for himself with a selection of catchy R&B hits such as "No Air," "With You," and "Forever."

He's had a pretty illustrious career.

Brown's been the recipient of many awards, including four Billboard Music Awards and a Grammy. He also holds the seventh place for most entries in the Billboard Hot 100, with ninety-one.

But that's not all he's famous for.

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Brown managed to hugely up his profile through dating pop superstar, Rihanna. Here, they're pictured in happy times - but their relationship has been marred by one major incident.

In 2009, Brown and Rihanna got into an argument which escalated to incredibly physical violence.

This left Rihanna with severe injuries, which ended up requiring hospitalization. The news of this incident blew up, leaving many fearing for Rihanna and disgusted by Brown.

The pictures of the incident are difficult to look at.

And for many once-Brown fans, this was the final nail in the coffin; in spite of his clear musical talent, he just wasn't the kind of person that you'd want to show support to.

And many pointed out this fact.

Even though there's one overriding incident that people point to as proof of Brown's violent behavior, it's clear that it exists as a part of a much wider (and more frightening) pattern.

After his break-up with Rihanna, Brown got into a relationship with Karrauche Tran.

She's an American actress and model, best known for her roles in web series, The Bay and TNT series, Claws.

The pair met in 2011 and quickly began dating.

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They had a very tumultuous, on-off relationship that spanned over the next three years - with plenty of incredibly poor behavior on Brown's part.

The two eventually called it quits for good in 2014.

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Alongside numerous acts of undoubtable infidelity, there were yet more allegations of violence and abuse lobbied against Brown after the two parted ways.

For one thing, there was some suspicious overlap.

During Tran's and Brown's relationship, Brown also had a brief renaissance with Rihanna, when the pair dated for a second time in 2013. But Tran stayed with Brown in spite of this infidelity.

But that wasn't Brown's only wrongdoing.

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During his relationship with Tran, Brown also fathered a child with another woman. Royalty Brown was born to Nia Guzman in 2015.

Recently, a piece for The Daily Beast extensively discussed Brown's behavior.

Because the issues in the couple's relationship appear to run far deeper than infidelity. In fact, it seems that Brown had fallen into repeating some highly dangerous patterns.

In 2017, Tran filed for a temporary restraining order against Brown.

Tran filed legal documents against Brown, including claims that he physically assaulted her and threatened her with death. Tran explained to Wendy Williams that "It came to a point where I felt like I needed to protect my safety."

It's clear that the courts took Tran's claims seriously.

In June 2017, a judge ruled that the temporary restraining order should stay in place for the next five years to protect Tran's safety.

Even more annoyingly, Brown seems to have got out of this scot-free.

His career has survived dozens of unthinkable allegations and he still appears to be flourishing. This summer, he's set to release a single with Drake, of all people.

Although certain factions of the internet aren't best pleased.

Because over the past few years, Drake has spent a good amount of time trying to prove to Rihanna that he's in love with her, and would be a valid relationship choice. Luckily, it seems like she didn't fall for it.

But Brown doesn't seem to know when to quit.

And by "quit," we, of course, mean, leave his ex-girlfriend (and the entire internet) alone forever.

Since finally shaking Brown, Tran has found new love.

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She's been dating previous football wide receiver, Victor Cruz, in recent months - and she's looking pretty happy, we must say.

But Brown seems unable to let things lie.

And, this week, he's come under fire for leaving some pretty bizarre comments on a few Instagram photos. The account that he's been stalking? Why, it's his ex's new boyfriend, Cruz's, of course!

But it's the content of these comments that's super weird.

Brown wrote, "No shade boo,, BUT PLEAS STYLE HIM . He look like he shopping of the manikin and trying to bargain wit the sales manager. Retired wrestler spanks. IM F--KING AROUND ... good bless."

Essentially, he's using the comments to try to contact his ex.

And the way that he's attempting to do so? By pointing out some "flaws" that he sees in her new flame's appearance - presumably to try to break the new couple up...

Things got even weirder.

His next comment read, "Nothing bad or major . UPGRADE HIM SIS. I'll take him around to style him. NOT HATE. He just need some game spirit. Peace love and joy. JUST PLEASE UPGRADE YA MAN BOO." It's clear that Brown can't shake Tran from his mind. He posted an Insta story saying, "Is it a sucka move to think about your ex?"

It seems like Brown may have regretted his actions.

He has since deleted this weird (and undeniably creepy) comments - but luckily, they were captured to be kept forever by a fan account.

God bless the internet.

There's no way that you can hide from your poor decisions anymore - everything you do will be saved forever online.

And the internet would obviously never let Brown live this down.

And people have had a lot to say about his latest (and, let's face it) a long line of indiscretions.

The joke already fits into some classic meme formats.

But as funny as this is, it's important to remember that the punchline is always that Brown is predatory and extremely frightening.

People were quick to point this out.

Surely Brown has done enough to adversely affect the life of Tran without going this extra step, literally harassing her partner online?

This was another popular take.

The irony of abuser and violent mess, Brown, telling Tran that she needed to "upgrade" was not lost on anyone.

Many made note of this.

Sure, it could be time to allow Brown to recover from his past, but he's literally making the same mistakes over and over again.

Making mistakes is one thing.

But repeatedly making them over and over again speaks to a level of delusion and danger that no one should support.