The singer was seen at this past Saturday's polo tournament featuring Prince William. He was accompanied by the Oscar de la Renta model, with whom he took a number of playful pictures at a photo booth sponsored by Jacks Wills, the British fashion house, People reports.
The two are said to have spent most of the day talking together in the stands. In addition, they attended a luncheon alongside the Jacks Wills team.
Jonas recently revealed that his new album is inspired by his past romantic relationships. The 21-year-old has previously been linked to Twilight star Ashley Greene, Demi Lovato and Taylor Swift.
In June, Jonas said that his brothers support his solo career, stating that they are happy he is enjoying his own experiences.
Jonas's brother Nick insisted early last month that the Jonas Brothers have not broken up, asserting that they plan to reunite at some point in the future for another collaborative project.
Watch Joe Jonas's new video for 'See No More' below: