Dermot is joined at the BBC's Maida Vale studios by a-ha, who play new material, old favourites and take listeners' questions.
The Norwegian trio's latest album marks a return to the classic pop sound that helped bring them success around the world, and sales of 36 million albums. Written and recorded in various major cities - from Oslo, where the band formed in 1982, to New York, where Pal now lives - Foot Of The Mountain is predominantly a synth-based album that carries echoes of the band's early signature hits Take On Me and The Sun Always Shines On TV.
There's also music from the Irish singer-songwriter Lisa Hannigan, who worked with Damien Rice and toured the world for several years before gathering a band of friends together to record her 2008 debut album Sea Sew. Lisa takes her songs on a tour of the UK and Ireland this summer, including a performance at the Electric Picnic festival.