All Saints' comeback single is about Nicole Appleton's split from ex-husband Liam Gallagher.
The multi-million record selling girl group - consisting of Melanie Blatt, Shaznay Lewis and sisters Nicole and Natalie Appleton - are returning to music this year with their first studio release for a decade, new album 'Red Flag'.
And the first single from the LP, 'One Strike', has been written as a direct response to Nicole's five-year marriage to Liam imploding in August 2013.
Nicole dumped the ex-Oasis frontman after it was revealed he had fathered a love child with American journalist Liza Ghorbani and their divorce was finalised in October 2015.
Soon after they broke up after around 13 years together, Liam embarked on a new relationship with his former band Beady Eye's aide Debbie Gwyther.
Shaznay has revealed her inspiration for writing 'One Strike' came from the heart-to-heart chats she had with Nicole about the split.
Shaznay said: "When I write, I just think about what's on my mind. The lyrics came from somewhere very real. Nic was going through a lot of things at that time. That was at the forefront of my mind because it was the heaviest thing going on."
Recalling their conversations, Nicole - who has 14-year-old son Gene with Liam - added: "We spoke for hours and hours on the phone."
Remembering the impact the track had on her when she first listened to it, Natalie said: "The first few times I heard it in my car. I couldn't stop crying because I could hear so clearly what it was about."
The last time the 'Pure Shores' hitmakers got together was for their 2014 UK tour and they insist getting back together wasn't forced and they genuinely missed making music together.
Natalie said: "We didn't force ourselves into this situation and it couldn't have happened at a better time in all of our lives. I just missed being with the girls. It makes us happy. Listen, if you can work with your favourite people, then why not? I have such a good time and I spend more time laughing and having fun than I do working."
Shaznay admits being back with the other girls and making new music was amazing and the foursome already are getting tracks ready for another LP.
The 'Never Ever' hitmaker said: "Seriously. I got on such a roll writing and recording with the girls again, we've started getting material for the next album together already. This couldn't feel any more right."
'Red Flag' - which comes 10 years after 2006's 'Studio 1' - is released on April 8 and single 'One Strike' drops on February 26.
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