The actor and singer, who reportedly met at May's MET Gala in NYC, were first seen kissing last month and have been spotted in hot spots like England and Rome since.
Swift, 26, and Hiddleston, 35, spent the holiday hanging with the lies of Blake Lively, Gigi Hadid and Ryan Reynolds to name just a few of the singer's high profile buddies.
The pictures also included some rock climbing and typical July 4th fun. #JustLikeUs.
Swift just called it quits with her DJ boyfriend Calvin Harris in early June. Weeks later, pictures popped up of the singer and the "Avengers" star making out on a beach near the singer’s Rhode Island home.
Since then, Hiddleston has met pals like Selena Gomez, even going to one of former Disney star's concerts with Swift.