Surie's stage invader is a man called Dr ACactivism, who is also known as Dr. A.C.
The activist, who is now in police custody, has previously stormed the stage and interrupted Dermot O'Leary at the National Television Awards this year and The Voice in 2017.
According to his Twitter bio he is a philosopher, activist, DJ/MC who is based in London.
He has written a book called The Workings of The U.K State Mafia, which he appeared to be promoting on his T-shirt as he interrupted the performance.
Earlier this year he hit headlines when he interrupted Dermot on stage during the biggest night for TV talent. The presenter confronted him and pushed him off the stage.
In April 2017, the wannabe rapper was revealed as the intruder who stormed the stage during the final of The Voice.
Dr. A.C. claimed that security guards almost broke his neck as he stormed the stage during the closing moments of the telly talent show.
The British entry, Surie, for the talent contest was on stage singing her track 'Storm' at the Altice Arena in Lisbon, Portugal when someone ran on stage and snatched the microphone from her hand.
According to The Mirror, he said something along the lines of: “For the Nazis of the UK media, we demand freedom."
Understandably shocked by what had happened, SuRie looked confused as security wrestled with the invader and removed them him the stage.
However, SuRie then resumed her performance, wowing the crowds with 'Storm' as they chanted the track title in support.
Following the performance, the 29-year-old singer received a standing ovation from the 20,000 people packed into the arena.
The UK arm of Eurovision wrote on their official Twitter account: "Just to confirm SuRie is ok. More news when we get it. #Eurovision (sic)"