Funnyman Russell Brand and U2 rocker Bono have both been deemed a bad influence on political debate, according to new research.

Brand has spent months calling for an end to the current democratic system and plugging his new book Revolution, which outlines his outlandish ideas.

He has now topped a new survey by YouGov.co.uk which named him the celebrity with the most negative impact on political discourse. The poll also found Brand is disliked by 60 per cent of the Brits who were asked.

Longtime campaigner Bono landed in third place, behind opinionated U.K. Tv star Jeremy Clarkson.

The poll also pointed out stars believed to have the most positive effect on politics, with Hollywood actress and United Nations ambassador Angelina Jolie coming in first place ahead of Live Aid founder Bod Geldof in second and Harry Potter star Emma Watson in third.