Payne rose to global fame as part of the boyband One Direction – created on The X Factor TV show in 2010 – and sang together with bandmates Harry Styles, Louis Tomlinson, Zayn Malik and Niall Horan.
Malik left the group in 2015 to embark on a solo singing career, and the band later split in 2016.
On Saturday, Malik announced he had postponed the US leg of his upcoming tour after the “heartbreaking loss” of his former bandmate.
His family have also been paying tribute. His sister Ruth Gibbins described Payne as her “best friend” in an emotional Instagram post, external, adding that she didn’t feel “this world was good enough or kind enough” to him.
Meanwhile in Argentina, Payne’s father, Geoff Payne, on Friday viewed tributes for his son outside the Casa Sur hotel in Buenos Aires.
He also visited the morgue in the city to officially identify his son. A federal prosecutor previously told the BBC that his body had been “released”, meaning no further tests were being carried out and identification could take place.