The singer and his brother haven't spoken properly in years since Oasis ended but now the brothers have ended their feud, fuelling hopes for an Oasis comeback.
He wrote on Twitter: "I wanna say Happy Xmas to team NG it's been a great year thanks for everything looking forward to seeing you tomorrow AS YOU WERE LG x"
When fans became over-excited at the prospect of a Britpop reunion, Liam answered them.
To a fan who wrote: "Team who? You're not going to have a meltdown on here come Christmas day are you Liam when NG doesn't reach out to you?"
Liam replied: "He's already reached out."
He added: "We're all good again."
I wanna say Happy Xmas to team NG it's been a great year thanks for everything looking forward to seeing you tmorrow AS YOU WERE LG x— Liam Gallagher (@liamgallagher) December 19, 2017
But throughout their years as the Kings of Britpop, the sibling rivalry and fighting escalated between Noel and Liam, both behind and in front-of-the-scenes.
In 2009 the final straw for the band came at the Rock En Seine festival in Paris when a "fight" broke out backstage between the two brothers - subsequently described by Noel as "no physical violence but there was a lot of World Wrestling Federation stuff".
This caused the gig to be cancelled at the last minute with Noel revealing the next day he had quit the band.
He released a statement saying: "It is with some sadness and great relief...I quit Oasis tonight.
"People will write and say what they like, but I simply could not go on working with Liam a day longer."