Former Oasis frontman Liam Gallagher is rumoured to be playing the secret set at the 2018 Latitude Festival in Suffolk.
It comes after the Britpop superstar tweeted a picture of a "Welcome to Suffolk" sign and said: "Lovely this time of year so I hear"
In recent years artists not in the main published line-up appear in special gigs on side stages at Latitude catching festival-goers by surprise.
If Liam Gallagher is confirmed as the secret set, he is expected to play the Latitude Festival on Saturday evening.
It's not known which stage will be used or at what time but there is a gap in the schedule on the BBC Music Stage and there are reports it could be at 5.45 pm. Also the Lavish Lounge area has a "Surprise Slot" billed at 9.30 pm