On Saturday night, the singer shared a series of videos on on Instagram of her meeting the “Rocketman” star.
“Coolest guy ever !!! Such a freaking fan ?,” she wrote in the caption.
In one of the videos, Egerton gives a delighted Spears a big hug from behind, while her husband, Sam Asghari jokes, “You’ve gotta get your hands off my wife.”
Fans were similarly freaking out in the comments.
“SCREAAAAMING ????,” wrote one person, while another added, “YES TARON!!! ?”
Another fan pleaded, “OMG TARON!!!!!!!!!!!!!! Britney cameo in Kingsmen please!”