Sarah Harding can't stop laughing during filming Corrie scenes
Sarah Harding says it's 'difficult' playing her character because she just wants to laugh.
Sarah Harding finds it "difficult" playing her 'Coronation Street' character.
The former Girls Aloud member - who recently began filming as new character Joni Preston - admitted she couldn't help but crack up in fits of giggles when she recorded an explosive argument with her co-star Kate Ford, who plays Tracy Barlow - the ex-wife of her character's husband Robert Peston.
Speaking about their on-screen row, she told the Daily Mirror newspaper: "It gets a little bit physical. It's funny because as soon as the scene cut we just cracked up laughing. It was difficult being angry because you'd just want to laugh."
The 33-year-old star - who will hit screens in the coming months - previously revealed she "wangled" her way into the ITV soap after meeting the show's boss Stuart Blackburn.
And after impressing producers with her four-episode cameo, the singer - who revealed her debut solo single 'Threads' earlier this week - has since been invited back to shoot for a longer period once she has released some more music.
She previously said: "I went there (to the set) late last year for 'Good Morning Britain', and they could see straight away that I was a fan. They gave me a grand tour and I got chatting to the casting and publicity people. They asked, 'Can you act?' and I said 'I have been known to!'
"When they told me they occasionally have bit-parts, I said, 'Well, if anything comes up that you feel might be suitable ... ' I wangled myself a bit-part and my mum is so jealous. It turns out they've given me more episodes to film after my music."