Speculations over Olivia Wilde and Harry Styles' relationship continue to develop these past few weeks. This comes after witnesses saw them holding hands together at a wedding ceremony earlier in January.

Amid all the talks, though, the two celebrities have yet to confirm the status of their links. Nevertheless, many people are convinced that they are dating each other.

Sources, also, recently revealed that the romance between them is "going strong," according to People. As added, the Tron: Legacy actress is "very happy" with her new partner. Moreover, they, reportedly, spend all of their time together while working on their latest project, Don't Worry Darling.

Olivia Wilde and Harry Styles appear to have established ties when the 27-year-old artist joined the cast of their upcoming film, replacing Shia LaBeouf for the lead role. The actress even previously admitted that she did a "victory dance" upon learning Styles' arrival to the cast.

The same publication stated that several insiders "saw it coming," implying that Wilde and Styles have an obvious "chemistry." The "Sweet Creature" could not, reportedly, stay away from their director and would always visit her trailer during breaks.

Another source, also, noted that the two stars "created [a] loving and warm environment." Everyone from the production allegedly "loved working with them," adding that the romance did not come as a surprise.

The dating rumors first emerged in January when clips and photos of Olivia Wilde and Harry Styles emerged. It features them getting close and cozy before their audience.

The pictures were taken when they attended the singer's agent's wedding at the San Ysidro Ranch in Montecito, according to Page Six. This was, also, their first public appearance as a pair.

Following the special event, several witnesses, then, saw them hanging out with friends. They were casually strolling and chatting with their companions in Santa Barbara.

While Wilde and Styles remain silent about the matter, Cosmopolitan reported that the "Sign of the Times" singer referred to the Booksmart actress as his "girlfriend" while officiating the wedding. This accordingly led the public to confirm the romance between the two celebrities.

Prior to her romantic links with Harry Styles, Olivia Wilde just got out of a long-term relationship with Jason Sudeikis. Reports confirmed the split in November, with sources alleging that the Horrible Bosses actor is "heartbroken" after calling off their engagement.

Other publications, however, claimed that the parents of two children "have had the best breakup in Hollywood." The reason being is that photos of them hugging and smiling at each other surfaced following the split. It has since appeared that they maintained a good friendship despite the breakup.