Louis Tomlinson has been "devastated" by Liam Payne's passing.
The 32-year-old singer - who starred alongside Liam in One Direction - has taken to social media to pay tribute to his former bandmate, describing Liam as a "positive, funny, and kind soul".
Alongside a photo of them together, Louis wrote on Instagram: "I am beyond devastated to be writing this but yesterday I lost a brother. Liam was somebody I looked up to everyday, such a positive, funny, and kind soul.
"I first met Liam when he was 16 and I was 18, I was instantly amazed by his voice but more importantly as time went on I got a chance to see the kind brother I’d longed all my life for.
"Liam was an incredible song writer with a great sense of melody, we often spoke of getting back in the studio together to try and recreate the writing chemistry we had built up in the band.
"And for the record, Liam was in my opinion the most vital part of One Direction. His experience from a young age, his perfect pitch, his stage presence, his gift for writing. The list goes on. Thank you for shaping us Liam. (sic)"
Louis actually directed the second-half of his message to Liam, who died in Buenos Aires on Wednesday (16.10.24), aged 31.
He wrote: "A message to you Liam if you’re listening,
"I feel beyond lucky to have had you in my life but I’m really struggling with the idea of saying goodbye. I’m so grateful that we got even closer since the band, speaking on the phone for hours , reminiscing about all the thousands of amazing memories we had together is a luxury I thought I’d have with you for life. I would have loved to share the stage with you again but it wasn’t to be.
"I want you to know that if Bear ever needs me I will be the Uncle he needs in his life and tell him stories of how amazing his dad was.
"I wish I got chance to say goodbye and tell you one more time how much I loved you.
"Payno, my boy, one of my best friends, my brother, I love you mate. Sleep well X (sic)"