Louis Tomlinson opened up about grief in an interview just days before his sister Félicité died.
Last month, Félicité passed away from a suspected heart attack which came after their mum Johannah passed away in 2016.
Appearing on Tuesday's Lorraine in an interview with took place five days before Félicité's death, Louis spoke about his new song Two Of Us - which he wrote about his mum.
Louis said: "We can all talk about grief a little bit more. That’s why I feel good about the lyrics because I could speak about it publicly.
"[My mum] was obsessed with me playing piano, and they said, 'what about playing the opening verse?', and normally I might have said no but knowing that she liked that idea, I kind of just zoned into that and just went for it and pulled it off."
Speaking about being a dad to his three-year-old son Freddie, Louis said: "It’s the responsibility side of things that has made the process a bit easier for me.
"When I’m with him it’s just one of those things where you feel so much love, it doesn’t matter what’s going on that’s all you’re thinking about.
"He’s well behaved but he is a little bit mischievous. But he’s really funny. It’s so exciting."
Days after the interview, the body of Louis' 18-year-old sister Félicité's body was discovered in her London home.
Félicité's death is currently being treated as "unexplained", and a full post-mortem examination and toxicology tests are underway to determine the teenager's cause of death.
That’s why I feel good about the lyrics because I could speak about it publicly.
Louis was said to be "devastated and distraught" over her death, with a source telling The Sun at the time: "Félicité was an absolutely adored young woman who was loved by Louis and her whole family.
"They are all totally devastated, as you can imagine. She had so many friends and was such a positive happy person. It's a massive loss to the world.
"She was a loveable, caring, bright, passionate, popular and beautiful young lady."
In the wake of her death, Louis pulled out of his scheduled performance for Comic Relief, but it was recently confirmed he's returning to the stage in May.
The One Direction star will be appearing as part of the Free Radio Hits Live show in Birmingham on May 4.
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