Adele made a low-key visit to the Grenfell Tower following the blaze that killed at least 17 people and injured dozens of others.
The singer made an appearance at the site at about 1am on Thursday and stayed for 15 minutes, eye-witness Tom Maughan told the Press Association.
Mr Maughan, 26, from Tottenham, came to the scene to help a friend who was evacuated from the 24-storey building which was devastated by a huge fire in the early hours of Wednesday morning.
He said, of Adele: “She was so nice. She was going around talking to people.
“She tried to keep it on the low but I shouted ‘Adele!’ and she said ‘no, it’s not me’. It was about 1am. She came with her husband.”
Mr Maughan said: “She didn’t have any security with her. It was a bit surprising. She wasn’t hiding her face.”
Pictures of the Hello singer, who was born in Tottenham, north London, emerged on Twitter during her visit.
The social media images showed her dressed in black and looking emotional.
Fourmee wrote on Instagram: “Just spotted Adele and Simon Konecki visiting the Grenfell Tower, she was dressed in an abaya. Respect to both of you.”
Adele was going around and hugging everyone she could to comfort them
— Adele Union (@AdeleUnion) June 15, 2017
Meanwhile Pop star Rita Ora has helped sort through donations for those caught up in the Grenfell Tower blaze.
Ora, 26, posted a video of herself among black sacks of donations, including clothes, water and food, at one of the help points in west London.
She also posted an image of the tower, and wrote “RIP” on Snapchat.
Earlier, the singer and former X Factor judge said she used to play in the tower block.
“This is my neighbourhood I can’t believe this is happening,” she wrote on Instagram.
“My prayers are with everybody involved my heart is beating so fast. I used to play in that block, I want to do all I can do to help.”
Meanwhile, comedians including Josie Long, Daniel Kitson and Mark Thomas have organised a fundraising evening “to gather in support of those affected by the devastating fire”.
Thomas said: “Like every Londoner, I am shocked, sad and angry about the horrific fire at Grenfell Tower. But it is not enough to feel these things – we need to support those in need.
“Organising a fundraiser is the least we can do to help our fellow Londoners.”
All proceeds from the event, hosted by Kitson at Battersea Arts Centre, will go to the Grenfell Tower Appeal.