While there's never been any confirmation, there has been a lot of solid evidence.
Now, the hardest evidence yet! Skai Jackson's own mother has confirmed the news in a comment on Instagram.
Just Jared posted a photo of Zendaya enjoying her 22nd birthday with friends and family in London, and Tom Holland was there too.
A fan commented on the post, "Rumoured boyfriend hahaha y'all dream too much."
Among the many people who replied to that particular comment, Skai Jackson's mother Kiya Cole chimed in. "Yes. It's true. They been on the low for a while."
While we love the news, some people aren't too happy with Skai's mum exposing them.
"Wow someone's mom exposed tomdaya being real..... honestly she had no right i wanted the reveal to be cute and sweet."
Neither Tom or Zendaya have responded to the rumours!