In 2005 the main attractions was former Westlife Brian McFadden (EI), Anne Linnet (DK), Shakin' Stevens (UK) and the local band Dynamit.
In 2006 the main attractions were Maggie Reilly (UK), F. R. David (FR), The Rasmus (FN), Johnny Deluxe (DK) and former Supertramp Roger Hodgson (CN).
Other main attractions were Kim Wilde (UK), Bryan Rice (DK), Banaroo (DE), Amy Diamond (SE) and local cult band Húskallar.
Other well known Faroese groups and singers who performed at the Summarfestivalurin were: Páll Finnur Páll, Brandur Enni and his brother Tróndur Enni together with Lív Næss,[2] Guðrið Hansdóttir, Uni Arge, Tinganest, Oniontree, Hanus G. Johansen, Eyðun Nolsøe and Terji Rasmussen from Frændur, Dynamitt from Klaksvík performed together with Steintór Rasmussen from the group Frændur, he was one of the founders of Summarfestivalurin.
The final in the Faroe Islands Cup, which in Faroese is called Løgmanssteypið, was played in Klaksvík at the same time as the Summarfestivalurin was being held.
Livar Nysted was rowing together with 3 other men: Leven Brown from Edinburgh, Ray Carroll from Galway in Ireland and Don Lennox from Glasgow.