Sarah Harding PULLS OUT of Ghost The Musical mid-performance... one month after comeback from respiratory tract infection

• e-mail

Sarah Harding pulled out of a musical performance of Ghost The Musical halfway through the show, on Monday evening.

The former Girls Aloud singer found herself at the centre of another health scare after her understudy was forced to step in after the interval.

The pop star was unable to complete the show, in which she plays lead female Molly, at Blackpool's famous Winter Gardens, just one month after coming back from injury.

Scroll down for video 

Pulled out: Sarah Harding (here with her co-star Andy Moss) was forced to pull out of Ghost The Musical on Monday night, mid-show 

A representative confirmed to MailOnline that Sarah Harding would be back on the stage on Tuesday evening.

Sarah returned to the three-month tour in September after being struck down with a upper respiratory tract infection.

Fans took to social media on Monday to praise her replacement with some even suggesting Sarah's stand-in put in a better performance.

Sarah was pictured smiling and enjoying a Chinese meal in the seaside resort with her other cast members on Saturday evening.

Despite that, she only managed half of the performance which itself left people in the audience with a lot of opinions.

Wild weekend: Just this weekend, Sarah was pictured enjoying the company of her co-stars

Taking time off: The blonde was pictured enjoying a night off

One Facebook user, Janet Hill said: 'My friend and I were there last night and Sarah Harding did us all a favour by becoming 'indisposed' during the interval!

'Her understudy did the second half and was superior in every way. Outstanding performances by the the actress playing the psychic and by the ghost on the underground.

'All others very good and really enjoyed it as a musical. Overall a really good show - minus Miss Harding!'

Others had a different view on Sarah's performance. 

Comeback queen: Sarah returned to the show last month, after a respiratory tract infection

One social media user, Katie Bridge said: 'Her singing was perfectly fine, it's the dodgy accent she had going on that was a nightmare.'

In October 2011, Harding checked into a rehab centre in Cape Town, South Africa after 'hitting rock bottom' following her split with fiancee DJ Tom Crane, citing alcohol dependence and depression.

Blackpool Winter Gardens and Sarah Harding's management team, 84world, have been contacted for comment.

At the end of last month, Sarah's former girlband mate Nicola Roberts defended her friend and the negative reviews the show had received.

Speaking to MailOnline Nicola said: 'I think it was unfair. She's taken on a new adventure and she's never done it before. 

Hitting back: Nicola Roberts defended Sarah last month, when her performance was panned

She said of Sarah: 'I haven't seen it but I'm sure she's doing really well we shouldn't put people down.

'It's good to have the confidence and strength to try different things and I admire her for doing it.'

Sarah's performance as Molly was heavily criticized, with audience members taking to Twitter to describe it as 'shocking' and 'poor'. 

BFFs: Hitting back at the negative feedback, the 30-year-old flame-haired beauty also discussed their firm friendship

Venting their spleen on the social media site, several theatre-goers were left rather underwhelmed by the production - and, crucially, Sarah's vocal ability.  

One catty Twitter user said while sharing an audio clip of the musical:  'Fellow unemployed, trained, professional performers, here's Sarah Harding & Andy Moss in the roles we didn't get.'

Another added: 'I feel bad for her. She should never have been put in the position to play Molly.' 

Another user then posted: 'Bawled like a baby throughout Ghost on the West End. Not one single tear for Sarah Harding. Soz love. Shocking.'

Unimpressed: Venting their spleen on the social media site, several theatre-goers were left rather underwhelmed by the production - and, crucially, Sarah's vocal ability

'I think it was unfair. She's taken on a new adventure and she's never done it before.' Nicole has stood up for Sarah

This was followed by another theatre-goer, who wrote: 'So... how many shows do we think Sarah Harding will finish before she 'leaves' the production?' 

Shortly after the backlash Sarah pulled out of the show while she recovered from an upper respiratory tract infection. 

Speaking about her other bandmates, Nicola added that she she still sees Cheryl and Kimberley Walsh regularly, describing them as her best friends. 

Don't mess with them! 'No one else was going through what we were experiencing, so we grouped together and had this pack mentality

Best friends: 'We (Kimberley and Cheryl) meet up regularly and do normal girly things like drink tea and eat crisps in front of trash TV,' Nicola revealed