Their former bandmates weren't in attendance, though Mel B and Victoria Beckham both sent their congratulations via Twitter.
The couple have allegedly been on a romantic holiday to Rome, after they were introduced to each other before Christmas.
On Wednesday, the British funnyman was photographed leaving the London home of former Spice Girl Geri Halliwell, with whom he has been reportedly romancing since earlier this month.
Brand, 37, and Halliwell, 40, reportedly bonded backstage at the Closing Ceremony for the London Olympics and have been spotted out on numerous dates ever since.
Liam Payne, Louis Tomlinson, Rita Ora, Leona Lewis, Jessie J, and Stormzy are just a few artists featured on the moving track recorded in honor of those who lost their possessions, homes, and lives in the inferno.
Photo: Adele Visits London Fire Brigade Following Grenfell Fire The recording, a heartbreaking cover of Simon & Garfunkel's , also features vocals from Robbie Williams, Bastille, Geri Halliwell, James Blunt, Nile Rodgers, the London Community Gospel Choir, and more British artists.
Mary’s Church in Bedfordshire's Woburn Abbey in England.
A source said: "They hit it off instantly and are seeing a lot of each other. He has friends in high places and loves shooting in the country."Geri's typically rushing into it with guns blazing, saying, 'He's the gentleman that I've been waiting for'."He is said to be friends with socialite Henry Beckwith, whom Halliwell previously dated for over two years.The other group members including Victoria Beckham (Posh Spice), Mel B (Scary Spice), and Melanie Chisholm (Sporty Spice) did not make the occasion. Halliwell and Horner began their whirlwind romance back in March 2014.Russell Brand’s love life may be getting a little bit spicier nowadays.She recently gushed about her life: "Of all the stages of my life I don't think I've ever felt happier, more content or more myself.I have absolutely everything I never dreamed I'd have.As for the survivors, the government has acquired 68 luxury apartments in neighboring Kensington to permanently house those left homeless by the fire.