The romance rumours have come thick and fast since the couple first sparked dating speculation back in 2013, but have Jamie and Katie just confirmed not only a relationship, but perhaps an engagement?
Although the pair attended separate events in New York City on Thursday evening, there was one unmissable detail that drew them together.
The 37-year-old actress stepped out to the star-studded Target Pillowfort launch party at the Highline Stages. She donned a brown leather jacket draped over a blue, frilled Michael Kors dress, but it was hard to notice the frock over the gold ring that sat proudly on her fourth finger.
On the same night, the 48-year-old triple threat suited up to attend the Hillary Clinton fundraiser at Radio City Music Hall, also in New York.
As he walked into the event, it was hard to miss the prominent gold bling on his engagement finger.
Last week’s outing wasn’t the first time the brunette beauty had been spotted showing off a diamond ring.
In fact, the Batman Begins actress has been accessorising with this particular piece for months now, causing many to cast speculation on her relationship status.
The mother-of-one was first romantically linked to Jamie back in 2013, after the pair sparked rumours of a romance when they were spotted getting cosy on the dance floor at the 4th Annual Apollo in the Hamptons benefit. Watch the video below to see the moment that started it all.
When the rumours first surfaced, sources revealed to In Touch that the pair had been “dating for a while” and that Jamie often spent time at Katie’s apartment.
At the time, Jamie denied the reports, telling Entertainment Tonight, “[The rumours] are 100 per cent not true.”
But to contradict Jamie’s denials, mutual friends of the couple have been adamant they are still secretly together.
Last year, a pal explained to Us Weekly that the Django Unchained was completely taken by the Dawson’s Creek actress, with one insider revealing he calls her "my girl" as in, “My girl is calling.”
“Jamie is someone she can trust and have fun with. She's getting everything from Jamie that she didn't get with Tom,” the couple’s friend said.
And the relationship rumours escalated to wedding whispers earlier this year, with multiple publications were claiming the couple were getting ready to tie the knot after two years of dating out of the spotlight.
“They’re ready to debut not just as a couple, but as a newly engaged couple,” said a source to OK!.
“They've discussed eloping or having a small, quiet wedding in an out-of-the-way place,” a mutual friend said to In Touch before adding: “They're happy.”
But before we had a chance to get carried away with the thought of Katie in another dreamy wedding dress, a rep for Jamie has spoken out on the latest batch of marriage chatter. Talking to Page Six, the rep clarified: “The marriage rumour is completely false.”
And what’s more, a rep for the actress insisted she “is not married or engaged to anyone.” Well, perhaps that’s true - but neither rep denied the existence of the couple’s relationship…
Despite her 2012 divorce from Tom Katie, who shares nine-year-old daughter Suri with her ex, is open to marrying again.
"I'm a very loving person. Of course I'm open to finding love again," she revealed to People magazine.
Meanwhile Jamie, who has previously dated Lil' Kim and Christina Milian, has admitted he'll never give up on finding The One. "Love's hard anywhere though. It's really hard out here. But I been out here so long, it's like you just sift through, sift through," he told E! News last year.