Tess Daly unrecognisable in Pulp Fiction wig for Leigh Francis' 50th birthday with Holly Willoughby as Barbie and Phillip Schofield as Ron Burgundy

This Morning presenter Holly Willoughby paid tribute to another famous blonde at her friend Leigh Francis' 50th birthday bash. The mum-of-three, 42, stepped out as Barbie for the celebration in a bubblegum-coloured outfit with matching headband and neckerchief.

Emily Atack joined her fellow Celebrity Juice star to dress up as screen goddess Marilyn Monroe with a shorter, blonder and curlier hairstyle. But as Emily, 33, channelled Gentlemen Prefer Blondes to celebrate the Keith Lemon star's landmark birthday, Strictly Come Dancing host Tess Daly swiched to the dark side.

Tess, 54, went dark brunette for as she came in costume as Mia Wallace, the straight-talking iconic character portrayed by Uma Thurman in the 1994 Quentin Tarantino film Pulp Fiction. Her Radio 2 presenter husband Vernon Kay, 49, joined her by dressing up as Mia's hitman date Vincent Vega from the movie.

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"An amazing evening celebrating @keithlemon being 50 and fab!" Tess wrote on her Instagram with a black and white photo of the husband and wife, and her fans hardly recognised her.

Olympic track and field athlete Dame Denise Lewis gasped: "Oooh that hairstyle suit you!" And tamrads commented: "Tess looks amazing with dark hair."

anna1134smith said: "I love you blonde. You look stunning dark. Your eyes pop more." And lucy gilmartin told her: "Omg I absolutely love your hair like that." And tessijo pointed out: "Your hair."

Sandra Leah said: "Wondered what Vernon was doing with Anne Hathaway." elson2048 wrote: "Fabulous, Tess I didn't recognise you at first xx" And tvnewscaps100 told her: "That wig really does suits you Tess!" Clare Sheehan agreed: "Omg Tess, you look absolutely