Heroes star Hayden Panettiere traded in her cheerleader pom poms for a vampish new look to promote her foray into the pop world.

The 18-year-old actress posed for a new TV campaign for US clothing and footwear company Candies, which features her new single, Wake Up Call.

Vamp: Hayden Panettiere looks all grown up in a new ad for US label Candies

Going pop: The 18-year-old is launching a singing career

She also wears the brand in her racy new video, which has just been released.

Her album has been four years in the making, with Hayden revealing: ' changed so much over the years just because my life experiences and who I am as a person is obviously reflected in the music.'

The result, she says, is collection of 'very different, very diverse' tracks. 

Downing her pom poms: Hayden trades her cheerleader garb for a mic and a more sophisticated look

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On song: Hayden's new single, Wake Up Call, features in the Candies TV ad

Not that Hayden, who dates co-star Milo Ventimiglia, 31, has given up her superhero powers for good.

She's already filming the third season of her hugely popular drama, which she promises packs just as much punch.

'Everyone's so excited about it,' she says.

'It's the same action, the same high-intensity as the first season.'

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Playing around: Hayden trades chord progressions for a spot of posing