Chris Martin's sister has revealed she works three jobs in a bid 'to keep the money coming in.'

Nicola Wren, 29, who was still in primary school when Coldplay reached global fame, also told how she changed her surname when she began her acting career.

'I’m an actor and my parents say all their children are "working towards their potential", she said, speaking to The Mirror.

'I have two side jobs too, just to keep a bit of money coming in: I’m a kids’-party entertainer and transcribes interviews for people.'

Nicola Wren, 29, has told how she works three jobs just to 'try and keep the money coming in.' Pictured, on 'Good Morning Britain' on 31 May 2019

Chris Martin of Coldplay performs at the Rose Bowl on October 6, 2017 in Pasadena, California (pictured)

She went on to explain that while there was another woman with the same name as her on the acting directory, she also worried people would think she'd get roles just because she was 'Chris Martin's sister' - so she changed her surname.

'Of course, my surname is Martin, but I changed it to Wren – after a Pizza Express pizza I’m fond of – when I started acting,' said Nicol.

'There was another Nicola Martin on the acting directory, and I also had this fear people would think, ‘Oh, it’ll be easy for her – Chris can get her work.’

I wanted to do it for myself.'

Back in May, Nicola told hosts Adil Ray and Ranvir Singh that it was 'really important' people knew her success was due to her 'working hard' and not because of who her brother is

Nicola confessed she changed her surname from Martin when she began pursuing a career as an actress and a writer (Pictured, Chris Martin in 2018)

She added that she was just 11-years-old when Chris met Gwyneth Paltrow - and he was propelled even further into the limelight.

However, at the time, Nicola has been given the role if the Mole in The Wind In The Willows and believed it was her big break.

But after the show, she told how she was bitterly disappointed to find the audience wanted their autograph - and not hers.

'I was really confused – why didn’t anyone want my autograph?! she recalled.

'In hindsight, I realise that was when I changed from being the deluded little girl who thought she was a huge star to being seen as Chris Martin’s little sister.'

Nicola has since starred in her Edinburgh show, Superstar, an autobiographical story about family, identity and authenticity while concealing that she's Chris Martin's little sister.