Actor Zac Efron has been voted the coolest male celebrity of 2008 by users of a teenage social networking site.

Coming in behind the High School Musical star were musicians Joe Jonas and Justin Timberlake in second and third places respectively.

Rounding out the top five were England footballer Theo Walcott and Arctic Monkeys frontman Alex Turner.

Girls Aloud star Cheryl Cole was named as favourite female celebrity in the poll on website Bebo, closely followed by Harry Potter actress Emma Watson.

Rounding out the top five females was British model and presenter Alexa Chung, singer Lily Allen and actress Lindsay Lohan.