STUNNED American Love Island fans are only just realising Blue are a real group after their performance in the All Stars villa last night.

Last night , , and jetted to the villa to .

Four men walk at night under trees strung with lights.Simon, Lee, Anthony and Duncan arrived at the All Stars villa last night to perform their hit All RiseCredit: ITV Four men from the boy band Blue perform on stage at night on the TV show "Love Island All Stars".Their performance left US fans only just realising they are a real groupCredit: ITV/Shutterstock A man in a light suit and a man in a striped shirt look at a poster of a band, while an audience watches in the background.The boys had a cameo in 2003’s Love Actually and some fans thought they were made up for the filmCredit: Unknown

And, while the Islanders were thrilled to see the boys, international fans took to social media afterwards to reveal their shock at Blue being an actual group after their cameo appearance in 2003 Christmas movie .

In the festive flick, the Blue boys are seen battling it out with Bill Nighy’s character Billy Mack for Christmas number one.

And US fans were convinced the group were made up for the film.

One wrote: “I love that movie but I assumed it was some put together group for the plot.”

Another replied: “Wait I also thought that.”

And a third wrote: “As an American I assumed that was fake.”

Blue recently released their seventh studio album – 25 years after their debut.

New album Reflections, released on January 9, and lead single One Last Time, which came out in September, shows a more grown-up side to the group, who are fans of bands including The Killers and .

Last year Duncan told The Sun: “I think all of us collectively have always loved that rock sound.

“But when you’re put into a boy band, you’re given a kind of direction to go down.”

Lee added: “We were all in synchronicity of the sound that we wanted to achieve and the songs came later.”

Meanwhile their performance in the villa last night left some .

is currently coupled up with while is with .

But Shaq and Belle were seen dancing together while Blue performed – sparking speculation from viewers.

One wrote on social media: “Am I the only one feeling Shaq and Belle? It’s giving they could work.”