Nicola made her comments to BBC Radio 5 Live as the five girls prepared to get back on stage again for the first time in several months.
The band has had a break over the summer, with Londonderry’s Nadine Coyle remaining in Los Angeles, where she lives with her family. Roberts said there would be no changes to their set and pointed out they were asked to support Coldplay because the rock band liked their music.
“So for us to turn around and scrap a few songs and do a few covers to try and please the crowd — well, that’s not what Girls Aloud are about at all.”
She added: “We’re not going to change for anybody, we’re just going to stick to what we do — our formula. So far it hasn’t gone so badly.”
Earlier this year Nadine told the Belfast Telegraph that she was a huge fan of Coldplay’s and was excited about supporting them at Wembley.
In an exclusive interview with the newspaper she said: “Can you imagine Coldplay wanting us to support them?
“I love all of their songs and can’t wait for the concerts. I’ll treasure those moments forever.”
Rapper Jay-zee and London indie rockers White Lies — who play Belfast in December - are also scheduled to perform.
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