A member of the Irish rap trio Kneecap is due to appear before Westminster Magistrates’ Court in London later.
Liam Óg Ó hAnnaidh, also known by his stage name Mo Chara, was charged with a terrorism offence last May.
He is alleged to have displayed a flag in support of Hezbollah at a gig in London last year but denies the charge.
Mr Ó hAnnaidh appeared before Westminster Magistrates’ Court last June and was granted unconditional bail.
During his appearance, his legal team argued that the terrorism charge brought against Mr Ó hAnnaidh was done so later than the six-month limit to bring such a charge.
It is therefore his argument that the case should be dropped.
The court will decide on this matter later today.
According to London’s Metropolitan Police, the terrorism offence is alleged to have happened at a gig last November at the O2 Forum in Kentish Town, north London.
The 27-year-old is accused of displaying a flag “in such a way or in such circumstances as to arouse reasonable suspicion that he is a supporter of a proscribed organisation”.
Mr Ó hAnnaidh has described the charge as “political” and insisted that the flag was thrown on stage.
Kneecap has also branded the charge a “carnival of distraction” from the crisis in Gaza.
A large crowd, comprising well-known activists and artists, are expected to gather outside the court this morning ahead of his appearance.
Mr Ó hAnnaidh will also be accompanied by a high-profile legal team which includes Gareth Peirce, solicitor for WikiLeaks founder Julian Assange, and Rosalind Comyn, who has represented Extinction Rebellion protesters in court.
His team also includes Darragh Mackin from Phoenix Law, Brenda Campbell KC, Jude Bunting KC and Blinne Ní Ghrálaigh KC, who was part of South Africa’s legal team in its case against Israel, accusing the country of genocide.