One Direction frenzy has gripped Stockholm for much of the week with thousands of fans camping outside the stadium in advance of the group's double header of shows.
"Jag älskar köttbullar. Vi älskar dig" (I love meatballs. We love you), said Styles to the delirium of the 46,770 sell out crowd. He also declared his love for meatballs during last year's Stockholm shows (video below).
The group, which formed four years ago on Britain's X-Factor tv-show, performed for an hour and 40 minutes and belted out their catalogue of hits.
However, despite winning over much of the crowd over with his stab at Swedish Styles' pop group members came in for harsh criticism from Aftobladet reviewer Kristin Lundell.
"The biggest sin that a boyband can indulge in is hubris," she wrote after giving the group's performance just two stars.
Lundell slated the group for showing up 45 minutes late and for the lack of enthusiasm displayed onstage by group member Zayn Malik.
"What's the point of watching him when he's bored? Seriously Zayn, your fans have paid a lot to see you. You need to sharpen up," she wrote.
One Direction is comprised of Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson. Since forming in 2010 they have generated a sizeable fanbase around the world.
As well as speaking some Swedish onstage the group paid tribute to their Swedish songwriting team of Rami Yacoub and Carl Falk.
"This gig is special. This is where our songs come from," said Liam Payne on stage reported Expressen.
Styles joins Rolling Stones frontman Mick Jagger in having a crack at a Nordic language. Jagger came in for praise for saying a few sentences in Norwegian when the rockers played Oslo last month.