Up for four BRITs this year, Jess Glynne is one of the most recognisable voices in UK pop. Here, her co-writer and best friend Jin Jin recalls how the star’s first solo No.1 Hold My Hand started with chicken, chips and an iPhone voice note...

I often come up with little ideas when I’m walking down the street and stuff; I had the idea for Hold My Hand and recorded it as a voice note. I had the line, ‘Like ...