Swedish actor Alexander Skarsgard was filmed leading a football chant while watching his team Hammarby Sports Club in Stockholm.
The 37-year-old, who was wearing the club's shirt, was spotted jumping up from his seat and turned to face the crowd before beginning a chant in his native tongue with hoards of fellow supporters.
The True Blood star began the chant: "We're the hottest, we're the best, we're the ones who win the most...Hammarby."
Watch the actor lead the crowd below: