Last week, Meta launched their rival to Twitter called Threads.
As of right now, over 100 million people have signed up for the social network, making it the fastest-growing app ever.
And now the two are sending public jabs aimed at each other on their social networks.
Mark has obviously been active on Threads.
He's having some casual banter with fellow billionaires.
And he’s also shadily responding to comments about Elon Musk.
For example, Phil Fung posted how "Threads" isn't trending on Twitter, which he finds hard to believe.
Mark has also been replying to people who say he wants to make Threads less toxic than Twitter.
And lastly, he replied to Wendy's asking him to go to space.
He tweeted about how Twitter is funnier even if there is some negative stuff on the platform.
Twitter: @elonmusk
He also posted, "Zuck is a cuck."
And then hours later, proposed a dick-measuring contest between the two.
So, that's where we are right now! The billionaires are fighting, and I can assure you the drama will continue.