Niall Horan has shared his amazement at how dedicated One Direction fans are.

Taking to Twitter earlier today, the Irish heartthrob posted a link to a YouTube video of hundreds of fans in Helsinki, Finland, taking part in a 1D Walk.

Niall was quick to follow up the link with a big thank you to everyone who took part in the walk on January 18.

“Our manager just sent this to me! [the video] This is part of the reason why I say to you guys all the time that we have the best fans ever,” he wrote.

In the video, hundreds of fans are seen braving -13 degree temperatures to walk through the streets of Helsinki with banners and flags of the UK and Ireland where the boys are from.

Later they are seen huddled on the steps of a formal-looking building singing the band’s song Best Song Ever.

Niall has recently had major knee surgery and is having to rest up at home, but the video certainly seemed to lift his spirits.

“I'm just sittin here watching modern family at home! And I get this! You guys never cease to amaze me , you sexy people ! #1DFamily (sic)” he tweeted to his 16,831,446 followers.

The reason behind the Finnish fans’ 1D walk was to try and get the band to play a concert in their country.

The girls will be hoping that the new music Louis Tomlinson mentioned on Twitter earlier today will give the band reason to visit the Baltic country.

“Getting really excited to start writing for the next record :)” Louis teased.

One Direction completed their Take Me Home world tour in early November last year and will soon be preparing for their 2014 Where We Are tour.