What is it about Ashley Tisdale that won her the role of snobby Sharpay Evans in Disney’s High School Musical? Inside sources? Hard work? Nope – Ashley attributes the success to her hair.

The natural brunette went blonde in an attempt at stardom. She says, “It suits my personality. I guess I was a brunett with a blonde personality.” She feels that was the key to her skyrocketing fame.

Ashley goes on, “At first it was really shocking and I didn’t know what to think, it felt like another person in the mirror. But now I am comfortable with it.” Her other secret? Staying out of trouble. “I don’t drink, I don’t smoke, and I don’t go clubbing so a lot of those problems go away.”

Actors working on the sixth Harry Potter film, The Half-Blood Prince, believe it is cursed after being plagued by a series of mishaps.

In the latest incident, on Wednesday, shooting was axed when the set was battered by storms. Daniel Radcliffe, 18, who stars as the boy wizard, has received death threats from a stalker.

And filming at Farnham, Surrey, has been halted by streakers and mistakes involving special-effects fog. An insider said: “Actors are feeling the movie is jinxed.

“As this is the sixth Harry Potter film, dark forces are at work to prevent us finishing.”