Cheryl Cole suffered an embarrassing slip-up during her performance at the 'Stand Up To Cancer' telethon on Friday night after her mic failed to work.

Chezza was performing her single 'Call My Name' on the new charity drive on Channel 4 when she suffered technical issues - without realising.

cheryl cole

The star danced and sang in the mic while a backing track played, but the audience was left straining to hear anything as her vocals failed to come through the speakers.

More embarrassingly, the star carried on dancing without any knowledge that viewers couldn't hear a word of her set.

Davina McCall swiftly moved on with the show after admitting there had been an issue.

A rep for Channel 4 says: "Unfortunately with the nature of live TV you sometimes have glitches and this was the case with Cheryl's mic in the opening number and it was rectified as soon as possible."

After the show, she took to Twitter to defend the issues, writing: "I really dn't feel upset abt the tec issues during my performance and chat.. I just hope every1 commenting on it has done their part 4 the cause."

The cringeworthy performance came after a triumphant day for the star after Girls Aloud officially announced their comeback to much fanfare.

At a press conference in London, the fabulous fivesome revealed they would be releasing a single, Something New, and a new album called Ten, and will also be heading out on an arena tour to celebrate their 10 years in pop.

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  • (From left to right) Cheryl Cole, Nicola Roberts, Kimberley Walsh, Sarah Harding and Nadine Coyle of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts, Nadine Coyle, Kimberley Walsh and Sarah Harding of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce that they will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts (hidden), Nadine Coyle, Kimberley Walsh and Sarah Harding of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce that they will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts, Nadine Coyle, Kimberley Walsh and Sarah Harding of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce that they will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts, Nadine Coyle, Kimberley Walsh and Sarah Harding of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce that they will reunite for a tour next year.

  • Girls Aloud press conference - London

    Cheryl Cole of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce the band will reunite for a tour next year.

  • Girls Aloud press conference - London

    Nadine Coyle of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce the band will reunite for a tour next year.

  • Girls Aloud press conference - London

    Sarah Harding of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce the band will reunite for a tour next year.

  • Girls Aloud press conference - London

    Nicola Roberts of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce the band will reunite for a tour next year.

  • Girls Aloud press conference - London

    Kimberley Walsh of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce the band will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts, Kimberley Walsh, Sarah Harding and Nadine Coyle of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce will reunite for a tour next year.

  • Girls Aloud press conference - London

    Cheryl Cole (left) and Nicola Roberts (right) of girl band Girls Aloud arrive at a press conference at the Corinthian Hotel in London to announce the band will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts, Kimberley Walsh, Sarah Harding and Nadine Coyle of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce will reunite for a tour next year.

  • Girls Aloud press conference - London

    (From left to right) Cheryl Cole, Nicola Roberts, Kimberley Walsh, Sarah Harding and Nadine Coyle of girl band Girls Aloud at a press conference at the Corinthian Hotel in London to announce will reunite for a tour next year.

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  • Girls Aloud TEN album cover

    Girls Aloud TEN album cover

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    Girls Aloud

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    Girls Aloud arriving for the BRIT Awards, at Earls Court, central London, SW5.

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    Pop band Girls Aloud during their guest appearance on MTV's TRL UK at the MTV Studios in Camden, north London.

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  • T4 On The Beach - 2007

    WESTON-SUPER-MARE, UNITED KINGDOM - JULY 22: (L-R) Sarah Harding, Nadine Coyle, Nicola Roberts, Kimberley Walsh and Cheryl Cole of pop band Girls Aloud pose backstage at T4 On The Beach on July 22, 2007 in Weston-Super-Mare, England. (Photo by MJ Kim/Getty Images)