Guinness have announced loads more Irish and international acts for their Arthur's Day event on September 24.

Among those added to the bill, which is shaping up to be pretty impressive indeed, are Roots Manuva, Paolo Nutini, The Magic Numbers and OK Go.

Irish-wise, there are: Oppenheimer, Concerto for Constantine, David Kitt, Fiona Melady, Fionn Regan, General Fiasco, Jerry Fish and the Mudbug Club, Sharon Shannon, The Coronas, The High Kings and The Infomatics.

They'll be joining previously announced headliners Tom Jones, Estelle, Sugababes and Kasabian.

Details of the presenters who'll be hosting events around the city have also been announced. Cat Deeley and Ronan Keating will be at the main stage at St James's Gate, while Michelle Doherty (Phantom FM) and Colin Murray (BBC Radio 1) will be presenting live from studio venues.