The 45-year-old star smoulders in the skimpy string two piece, which looks as if it were from a recent photoshoot.

J-Lo, who is famed for her curvaceous derriere, posted the image to the photo sharing app, captioning it: ‘I want summer back!’

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The mum-of-two also added she was ‘Soooo chilly this morning.’

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Jennifer will reprise her role as an American Idol judge when the series returns in January, and will be joined by Keith Urban, Harry Connick Junior and host Ryan Seacrest.

In an exclusive clip for the new series, released last week, one Idol hopeful can be seen covering J-Lo’s famous ‘I’m just Jenny from the Block.’ We wonder what the superstar will think of the contestant’s rendition?