TV leaders' debate: Watch the moment a heckler stole the show from David Cameron

Video: Heckler says she won't vote for any of the 'Big Seven'

Peter Macdiarmid | Getty Images

The "Big Seven" TV leaders' debate saw a surprise eighth candidate steal the limelight on Thursday night as an audience heckler interrupted Prime Minister David Cameron.

The Conservative Party leader was responding to a question from a young member of the audience: "If you are elected, what will you do about my generation feel optimistic about our future?"

As he began to argue that he had ensured a strong economy, a woman in the audience stood up and said, "How can you talk like that when there’s homeless people in the street who've been in the services?

"I’m sorry but I have to speak out because at the end of the day I’m worried.. There’s more of us than there is of them and they’re not listening to our concerns."

Cameron responded by saying, "The lady makes an important point," while debate moderator Julie Etchingham tried to get the woman to sit down. She was later revealed to be Victoria Prosser, 33.

She told reporters outside the studio in Salford that she was a member of no political party, would not be supporting any of the seven parties represented in the debate and that she preferred the group formed by former Happy Mondays dancer Bez.

She said she was asked to leave the debate after her 15 minutes of fame, being walked out of the studio after making a second interruption about fracking.

"My cause is speaking the truth and making sure as many people as possible start questioning people at the top, the one per cent, who are not working in our best interests," Prosser said afterwards.

"I can't vote for anyone who I know is lying or omitting facts. That means I couldn't vote for any of the people that I saw tonight. Even though some of them had good ideas, I know that they are all out for the same cause."

Prosser added: "David Cameron mentioned giving a fair deal to everybody in this country, including people such as our fine military service people. Yes they are fine. But they are not treated fine after they have left the Army, when they are in poverty and destitution, homeless on the streets and no hope of getting housed."