Gallagher parted ways with his brother Liam, guitarists Gem Archer and Andy Bell, and drummer Chris Sharrock after Oasis split in 2009, and his former bandmates stuck together to form new group Beady Eye.
They released two albums but enjoyed only limited chart success, scoring just one Top 40 hit in their native U.K., before splitting in October (14), and now Gallagher has given his verdict on why his brother's new venture failed.
Gallagher, who was the main songwriter in Oasis throughout their 18-year career, tells NME magazine, "They're a f**king great band but they're not great songwriters. They needed one great song. Not just a hit single, a great f**king tune. But I don't think he'll (Liam) be out of the game forever."
Liam Gallagher is currently undergoing a turbulent few months as he endures the fallout from his divorce from Nicole Appleton and faces a maintenance battle in the New York courts over a lovechild he fathered in 2013, but Noel appears to have offered his younger sibling his support.
Gallagher adds, "He's making a f**king mess of things at the moment, but we've all been there. I've been there. Something like that can be a great thing because you get to the bottom and you cleanse yourself of a lot of f**king s**t baggage and you start again. I'm the kind of person that says 'F**k it, take it' and I'll start again. And that would be my advice to him."