At least 17 people have died from the fire which engulfed the block of flats in North Kensington in the early hours of Tuesday morning, with it continuing to burn for 24 hours after.
70 people are receiving hospital treatment after being caught up in the blaze, which swept the building after a fridge on the fourth floor caught fire, with 18 people in a critical condition.
The I Will Never Let You Down singer rushed to lend a hand at one of the many help points that sprang up in the wake of the west London inferno yesterday.
She later posted on Instagram: 'This is my neighbourhood I can't believe this is happening. "My prayers are with everybody involved, my heart is beating so fast", she said. I'm literally on the other side of the world and I want them to see our lights and to hear us.
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An emergency contact number has been set up for anyone concerned for loved ones: 0800 0961 233.
The singer isn't the only star who made an appearance near the site - Adele was spotted attending Wednesday night's vigil, comforting those affected by the blaze which killed 12 people and injured dozens more, although this figure is expected to rise.
The money raised by the single will go to families of those lost in the fire as well as victims who lost their homes.