Kelly Brook left some fans shocked on Tuesday with her very elaborate April Fool’s Day joke.

The presenter, 45, joined forces with her Heart radio co-star Jason ‘JK’ King, 50, to make a huge career announcement during the annual custom.

Taking to their respective Instagrams, the pair revealed that they were set to release their debut single as they seemingly embarked upon a new profession. 

The artwork for Kelly and JK’s single – aptly named Getting You Home’ – saw them moodily gazing at the camera for a black and white snap, with Kelly resting her head on her pal’s shoulder.

Completing the ruse, further snaps showed the pair hard at work in the recording studio, with another showing them signing a pile of CDs. 

The pair even posed with radio star Will Manning as they jokingly made out that they’d bagged a number one.  

Kelly Brook left some fans shocked on Tuesday with her very elaborate April Fool’s Day joke [pictured with co-star Jason ‘JK’ King]

Taking to their respective Instagrams, the pair revealed that they were set to release their debut single as they seemingly embarked upon a new profession

Captioning the post, they penned: ‘You’ve been asking for YEARS and finally it’s happening! Our iconic duo @jkjasonking & @iamkb are swapping radio mics for the stage…. they’re releasing a debut single!! 

‘A sneak peek at the song is coming VERY soon….’

Kelly’s announcement had left fans divided, with some excited over their debut song, while others – including Amanda Holden – quickly cottoned on to the joke. 

Comments included: ‘Too obvious… April fool’, ‘what day is it today?’

‘Congratulations, I’m going to buy it’, 

‘This has to be an April fool

‘Awesome. Congratulations’; ‘Sneak peek please’ 

‘A news item that makes you wish it wasn’t the 1st of April.’

‘I know it’s April Fool’s but would listen anyway. Love you both and thankyou for putting a smile on our faces everyday!!You two are the King and Queen of Heart Radio.’

The presenter, 45, joined forces with her Heart radio co-star Jason ‘JK’ King, 50, to make a huge career announcement during the annual custom

Completing the ruse, further snaps showed the pair hard at work in the recording studio

Another image showed them signing a pile of CDs

Kelly and JK looked lost in the music as they listened back to their ‘debut song’

Captioning the post, they penned: ‘You’ve been asking for YEARS and finally it’s happening!’

Kelly’s prank comes days after she was left hobbling home after suffering a knee injury while out on a 26 kilometre run with her husband Jeremy Parisi.

The TV personality and former model made the most of the good weather on Sunday as she tackled the distance. 

Kelly started off strong and her athletic husband shared his pride at her progress as she sped off ahead of him, in an array of clips on Instagram.   

But disaster struck two hours later just after 1pm, when Kelly’s knees gave way and she had to walk home. 

Kelly was seen hobbling along the path before Jeremy asked: ‘What’s happened… what’s happened?’ 

Kelly’s announcement had left fans divided, with some excited over their debut song, while others – including Amanda Holden – quickly cottoned on to the joke

‘My legs have seized up is what’s happened,’ before her supportive husband added: ‘You did 23k, it’s good, very good.’

She captioned the clip ‘Knees went so it was a slow painful walk home [face palm]. 

‘Jeremy said it was the Aperol spritz I had yesterday [laughing emoji].’

Just 5km in to her run, Kelly spotted a tree which marked a milestone in the long run so she sped towards it and wrapped her arms around it.

 Kelly’s prank comes days after she was left hobbling home after suffering a knee injury while out on a 26 kilometre run with her husband Jeremy Parisi.

The TV personality and former model made the most of the good weather on Sunday as she tackled the distance 

Speaking to the camera in the next clip, Jeremy said: ‘Today is really fast, very fast.’ He then punched the air in excitement at Kelly’s progress. 

An hour later, at 11am, it was on to a mini hill, which Kelly revealed had been a struggle for her the previous week. 

‘Last week you saw my walking up after 15km, I couldn’t even walk it,’ Kelly said. 

‘Now you’re good,’ Jeremy said, before Kelly replied: ‘I knew I was going to be able to do it today. My god, look at that! Sh**.’