Analogue was a-ha's eighth studio album, released in 2005. Following the band's reunion around 2000, a-ha pursued a guitar-driven, mature pop direction. The single Analogue (All I Want) reached the UK top 10, the first time the band had done so since the 1980s. Celice and Cosy Prisons were other songs on the album. Graham Nash provided backing vocals on a few tracks. The album dealt with themes of relationships, loss and time, with Morten Harket's voice as its central element.