Former Busted rocker James Bourne has leaped to the defence of his chart pals McFly after their musical abilities were called into question by HARRY POTTER star Daniel Radcliffe.

Radcliffe became a hate figure on McFly's website after he slammed the band as untalented.

And Bourne, who fronts band SON OF DORK, fumes, "Us and McFly are going to kick his a*s.

"Daniel Radcliffe talks a lot of s**t. He keeps talking about everyone else's talent, but he should look at his own - he is atrocious."

Bourne's bandmate DAVID WILLIAMS adds, "He is a s**t actor and the s**test character in the whole movie."