UPDATED Wednesday 9 May at 5:00 pm

Ladies and gentlemen, Alesha Dixon has changed her mind.

Rather than the Julien Macdonald SS12 gown the BGT host planned to wear for tonight's live show (see below for details), Dixon will wear a gown from Falguni and Shane Peacock with Julien Macdonald shoes.

'There was a slight problem with the alterations and she can't go out looking less than a hundred percent perfect,' stylist Katie Greengrass explained.

'When it's live telly, anything can happen, so we always have a back-up look we revert to if anything goes wrong at the last minute—and what a great back-up look this is!'

Don't forget to follow us on @ELLEUK for more exclusive updates.

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From Mary Katrantzou to Balmain to... okay, we’ll tell you: Alesha Dixon will wear a Julien Macdonald spring summer 2012 gown for the fourth night of BGT live shows tonight.

The talent show judge said she knew she wanted to wear a design from the collection even as she was watching Macdonald’s SS12 show.

‘I really wanted to wear Julien Macdonald because he’s somebody I’ve worked with from the Mis-Teeq days,’ she told us.

‘I’ve worn Julien for onstage, red carpet, and I think that when you’re on a show like Britain’s Got Talent, which celebrates everything that’s British, it’s important to celebrate the British designers as well.’

Stylist Katie Greengrass chose a white ASOS belt and white Camilla Skovgaard heels to give the dress a more modern feel, a direction further underlined by nail artist Marian Newman’s plans to give Dixon a silver chain-embellished or caviar manicure.

Watch the video below for all the details of Dixon’s live show wardrobe. Follow us on @ELLEUK for more ELLE exclusives during tonight’s show, and check back tomorrow for a new video of Day 5 looks.

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