Clubbers were left star-struck after a former One Direction singer was spotted casually enjoying a night out in Watford.

Louis Tomlinson was said to be filmed outdoors at Pryzm nightclub, in a video published on social media site TikTok over the weekend.

Tomlinson, 30, was pictured holding a drink and speaking with a man and a woman in the smoking area.

Read more: Tequila bar to open in Watford town centre 

The video, which appears to have since been removed on TikTok but has been shared multiple times on other social media sites, was captioned: “Louis Tomlinson at Pryzm Watford wtf!!!”

Tomlinson is thought to have been in the area after he was earlier seen at a wedding - but his army of fans seemed bemused and bewildered by his appearance.

One person tweeted: “I’m in tears why watford pryzm”, while another said “what business does louis tomlinson have in pryzm Watford I’m so confused”.

A third said: “Watford pryzm (insert crying face emojis) does louis know he’s famous”.

Read more: Pryzm owner reacts after plans to turn club into homes rejected

Watford Observer: Pryzm nightclub in Watford. Image: Stephen DanzigPryzm nightclub in Watford. Image: Stephen Danzig (Image: Stephen Danzig)

Tomlinson rose to fame as a member of boyband One Direction after appearing on ITV show The X Factor.

The band has since split with Yorkshire-born Tomlinson going on to release his own singles and albums.

Have you got a story for us? You can contact us here.

Follow us on Facebook, Twitter and Instagram to keep up with all the latest news.

To receive breaking news alerts or newsletters sign up here.