Sarah Harding finds it "difficult" playing her 'Coronation Street' character.
Sarah Harding
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."
Tagged in Girls Aloud Sarah Harding Kate Ford