The singer performed the touching tribute while delivering a surprise performance at London’s Crisis homeless shelter on Tuesday (Dec. 27). Chris sang the Wham! single alongside a Crisis volunteer.
Another volunteer for the charity, Nish Manek, posted a photo of the father-of-two at the shelter, writing: "Huge shout out to the amazing @coldplay #chrismartin for dropping by to our @crisis_uk West London shelter to play for guests. What a legend." Speaking about the day, she said: "It was my first year helping as a doctor, and I'm used to being humbled by kindness in the NHS, but this was a whole new degree of humility and hard work. As lovely as Chris was, the real credit is to the immense grit and hard work of the guys that run that place day in day out."
Chris isn't the only famous face to have paid tribute to the singer, as Elton John also performedDon't Let the Sun Go Down on Me on Wednesday in honour of the late star. The Candle in the Wind singer sat behind a piano as he passionately performed the song with a band while beaming a huge image of George onto the set behind him.
He also posted a photo of the pair together on Instagram, writing: "I am in deep shock. I have lost a beloved friend - the kindest, most generous soul and a brilliant artist. My heart goes out to his family, friends and all of his fans."
According to reports, there is also early talk of a tribute charity concert to be held in George's memory. Former Wham! band member Andrew Ridgeley and Aretha Franklin are said to be interested in taking part.
George's publicist announced the sad news that the singer had died on Christmas Day at the age of 53. He released a statement to HELLO! which read: "It is with great sadness that we can confirm our beloved son, brother and friend George passed away peacefully at home over the Christmas period. His family would ask that their privacy be respected at this difficult and emotional time. There will be no further comment at this stage."