John Barrowman has updated his social media following on Instagram after he was forced to pull out of a live performance on Saturday due to a 'severe neck injury'.

John, 52, was forced to cancel a string of his A Fabulous Christmas live shows over the weekend, in Bristol and Glasgow respectively, as he was left unable to move.

But he has now revealed that he has undergone multiple intraspinal injections which acts as an anti-inflammatory and will help him to move once again.

John filmed himself saying: 'It's 2:30 in the morning and I've just had to wake up and take another pain killer and inflammatory. Scott says I'm going to have some small needles... and some very big ones put into my neck so I'll let you know how it goes.

'I can't really move that much ...so that's it.'

He also reported that the MRI scan results came through and that he was diagnosed with a C5/6 facet joint injury.

'Hopefully a series of intraspinal injections will reduce inflammation and get me back up & running again in time for Monday’s show in Manchester,' he added.

He posted an image, a little later on, of his neck, covered in a large plaster.

'Procedure done. It was a bit uncomfortable,' he captioned the snap.

John took to Instagram earlier on Saturday to share a promo photograph for his A Fabulous Christmas show and made the worrying announcement to fans. 

He wrote: 'I'm devastated to have to tell you that due to severe neck injury, which has made it impossible for me to sing and move, I've been rushed to hospital for a diagnosis.

'The Doctors have advised me to not perform this weekend while I try and recover, so I've had to make the very difficult decision to cancel my performances at the Bristol Hippodrome on Saturday 30th November and at the SEC Armadillo, Glasgow, on Sunday 1st December.

'I am so dissapointed (sic) and upset as I was looking forward to seeing you all, I feel I am letting everyone down, but it's simply not possible for me to do the show in my current condition.' 

Taking to Instagram on Saturday afternoon, John shared a snap of himself being driven to hospital for an MRI scan.

Sitting alongside husband Scott Gill, the actor was wrapped up in a blue hoodie and knitted cardigan, and gave a thumbs up for the selfie.  

The Desperate Housewives star wrote alongside: 'Heading to hospital for an MRI scan on my neck!

'I’ll Keep you all posted on my progress - Bless you all and thanks for all your good wishes.. JB.'

It as, as yet, unclear how John sustained his injuries.

MailOnline has contacted John Barrowman's representatives for comment. 

The statement, written by Mr Barrowman, was also shared on the Hippodrome's Twitter page, explaining that the shows have had to be cancelled. 

The Hippodrome also explained that ticket holders wanting to exchange their tickets for tonight to Saturday 14th Dec at Oxford New Theatre should call 0333 096 690, otherwise they will receive a refund from their point of sale.

The worrying news about John's hospitalisation comes just two weeks after he debuted his short grey hair on Extra Camp.

The star was unrecognisable, leaving viewers divided over his new look with many branding him a 'silver fox,' while others claimed the hairstyle 'aged him.' 

The actor had previously sported lusciously thick dark raven locks, usually styled into a side-swept look.  

John appeared on Sunday night's spin-off alongside This Morning's Alison Hammond to give his opinion on this year's campmates, after the launch show had aired'

But viewers were stunned when he sang out his well-known catchphrase: 'Fab-u-loussss!' after making a dazzling entrance, as they'd failed to recognise the star.