The 'Stay With Me' singer broke his social media silence on Monday (26.12.16) - his first post since June - to pay his respects to the late 'Careless Whisper' hitmaker, who was just 53-years-old when he passed away at his home in Goring-on-Thames, Oxfordshire, South East England on Christmas Day (25.12.16).
Taking to Twitter, he wrote: ''Words can't express how much you and your music meant and means to me. Please play his music as loud as you can today..& celebrate one of the most magical, talented, bravest & important figures in music & life as I know it. Your music & message will live on
''I would not be the artist I am if it wasn't for you. @GeorgeMichael (sic).''
Before his death, George was said to be working on a new album, which he was hoping to release in 2017.
He had reportedly already started penning some of the tracks for the LP, which would have been a follow-up to his 2014 release 'Symphonica'.
Naughty Boy - who has worked with music greats including Beyonce and Sam Smith - was set to produce the album.
He shared earlier this month: ''He's got an album coming out next year, and he's going to be doing something for my album as well. I can't wait. I don't know what to expect. And, to be honest, he's more mysterious than anyone else so I'm actually excited.''
The 'Tiny Dancer' hitmaker took to Instagram to remember the star, 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. @GeorgeMichael #RIP (sic).
And the 'Don't Stop Me Now' guitarist expressed his deep shock, posting a picture of George on Instagram and writing: ''No words. RIP George. Bri (sic).''