The Las Vegas band are due to appear on the Pyramid Stage on Saturday (June 28) and according to The Sun, Gallagher was planning to team up for a collaboration.
A source told the tabloid: ”Liam is a big fan of Brandon and the lads and has got on stage with them a few times. But they got talking about doing a proper bit together, so have been speaking about doing something on Saturday night.
”As ever with Liam, things go right down to the wire, but both sides are keen to do something and Liam is on directly before The Killers.”
But a spokesperson for The Killers has since denied they will be teaming up with Gallagher, who is due to appear onstage before the Vegas outfit headline.
The former Oasis frontman previously made an appearance with the band in Brazil last year.