The viking metal act from Melbourne which labelled Australia's Eurovision representative Guy Sebastian a "beige-coloured Volvo full of Subway rolls" has grave fears the singer may be "captured and eaten" in Vienna.

Yuri Pavlinov, bass player for Barbariön, says the band has come to terms with the fact Sebastian – and not they – got the nod to represent Australia in Austria on May 23, although "we would have preferred that the final decision had come down to a bout of hand-to-hand axe combat".

Melbourne metal band Barbarion fear Guy Sebastian is too thin and could be eaten at Eurovision 2015. Credit:Nicola Bell

When Sebastian was announced, the seven-piece band lashed SBS in an open letter on Facebook: "You have always been the epicentre of our cultural and artistic diversity, and now when granted the golden opportunity to promote our capable local music scene you have sold out, big time!

"It didn't have to be Barbariön. It could have been any one of a hundred local acts, from the hundreds of genres. Someone the nation could rally around and be inspired by. Someone a little off ya know, a dag, take a bit of risk mate.