Nadine Coyle says her mum was terrified she'd get addicted to drugs after she joined Girls Aloud.
The singer and former I'm A Celebrity campmate says her mum was so scared about her falling victim to drugs that she made her "watch movies like Gia" about model Gia Garangi, who died from AIDS after becoming a heroin addict.
The 35-year-old said on podcast Wardrobe Malfunction: "My mum had this idea that music agencies would give you drugs to give you a certain look in your eyes."
Nadine was just 17 when she moved from Northern Ireland to London to be in the band in 2002 and admitted she found life difficult, even thinking at one point: "What am I doing?"
Girls Aloud formed in 2002
Nadine Coyle admits weight changes meant Girls Aloud stars were taped in outfits
I'm A Celeb's Nadine Coyle admits peer pressure made her do the eating trial
The star also admitted on the podcast that she and her bandmates Sarah Harding, Cheryl, Nicola Roberts and Kimberley Walsh, fluctuated in weight so much that they'd sometimes have to be gaffer taped into their stage outfits.
She said: "You would do a tour and you're in shape and you're rehearsing. Dancers are throwing you around and then you get into your costumes and it's great.
"But then you take a few weeks off and do summer festivals and use the same tour costumes that you fitted into when you were in really good shape.
Her mum was terrified she'd start taking drugs
(Image: SIPA USA/PA Images)
"So the stylists would have loads of gaffer tape on the side."
Girls Aloud rose to fame after they were formed on ITV show Popstars: The Rivals.
They disbanded for good in 2013.
Nadine recently reflected on her time in the I'm A Celeb jungle last year, saying peer pressure made her do the eating trials.
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Nadine was made to watch movies about stars who became drug addicts
(Image: Press Association)
The mum-of-one retched as she scoffed down a cow's anus and put cockroaches in her mouth in a Bushtucker trial in front of her campmates.
She said on I'm A Celeb spin-off The Daily Drop: "I did [do the eating trials]. I had to hold cockroaches in my mouth.
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"It's the peer pressure. Everyone is there watching you. Everyone is starving. You wouldn't do it otherwise!"
Last night's I'm A Celeb saw another shock double eviction, with former EastEnders star Jessica Plummer and opera singer Russell Watson given their marching orders.