Holly Willoughby showed off her toned legs in a sultry Instagram video on Saturday ahead of her appearance on Michael McIntyre’s Big Show.

The presenter, 44, looked in fine form as she perched cross-legged on top of  a radiator while posing for a number of glam pictures.

Holly looked fabulous as she drew attention to her toned pins in a black floral mini dress, which she teamed with sheer тιԍнтs and black, bow-detail shoes.

The Dancing On Ice star added a dewy palette of make-up, while she swept her blonde locks into a chic up-do, with loose tendrils left framing her face.

Holly, who looked in her element as posed this way and that for the camera, then went on to tease an ’emotional’ moment coming up in her latest TV appearance, amid a shock reunion with an ex-boyfriend.

She penned: ‘Tonight on Michael McIntyre’s Big Show… I play ‘Remember Me?!’… Brace yourself…it was quite the emotional rollercoaster! 6:40PM on @bbc and @bbciplayer.’

Holly Willoughby showed off her toned legs in a sultry Instagram video on Saturday ahead of her appearance on Michael McIntyre ‘s Big Show

The presenter, 44, looked in fine form as she perched cross-legged on top of a radiator while posing for a number of glam pictures

In Saturday’s upcoming episode of Michael McIntyre’s Big Show, the former This Morning host was greeted with a familiar face, who she once declared her love to.

The unsuspecting presenter, 44, came in for the full treatment on the primetime programme, which invites celebrities sharing insights into their personal lives while springing the odd surprise, as a handsome man suddenly arrived on stage.

The penny immediately dropped for Holly, who put her hands over her face in shock, as she realised it was none other than childhood sweetheart Oliver.

Michael then asked the tall man, who wore a navy shirt with navy jeans, about his past romance with the now famous TV star.

He said: ‘Obviously you had this incredibly intense romance with Holly, do you have any memorabilia or keepsakes from this?’

Oliver, it turns out, had something hidden away in his pocket, replying: ‘It’s funny you ask that. This is pure coincidence but my mother has had this and she sent it to me about six months ago. It’s a letter from you, Holly, to me.’

It was now a mortified Holly’s turn to reminisce, and the Celebrity Bear Hunt presenter was forced to read the cringe-worthy note aloud to the audience.

She began: ‘Dear Oliver, how are you, can you please send me a pH๏τo of…’

Holly looked fabulous as she drew attention to her toned pins in a black floral mini dress, which she teamed with sheer тιԍнтs and black, bow-detail shoes

She penned: ‘Tonight on Michael McIntyre’s Big Show… I play ‘Remember Me?!’… Brace yourself…it was quite the emotional rollercoaster! 6:40PM on @ bbc and @bbciplayer’

It comes as Holly was left shocked after she was reunited with her ex-boyfriend on Saturday’s upcoming episode of Michael McIntyre’s Big Show

The former This Morning host was greeted with a familiar face, who she once declared her ‘love’ to, and put her hands over her face in shock

The penny had immediately dropped for Holly as she realised it was none other than her childhood sweetheart Oliver

During his appearance on the show, Olivier proudly read out the childhood love letter that Holly sent him 

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The letter briefly tailed off at this point, a fact which was not lost on host Michael.

It then continued: ‘Have a good time on holiday and get brown (if you can).

‘I love you, hope you love me and what about that pH๏τo of the naked lady Hannah was telling me about. Love Holly.’ 

As she read the final line, the TV personality burst out laughing before adding: ‘It looks like I’ve wiped my mouth with it [the note].’

Holly tied the knot with television producer Dan Baldwin in 2007, three years after they began dating.

They share three children, including eldest son Harry who was born in May 2009 and eldest daughter Belle who arrived in April 2011.

Three and a half years later, second son Chester made it a trio.