Steve Lamacq plays some of the most exciting tracks by upcoming artists as well as some old favourites from the likes of Kings of Leon, U2 and British Sea Power. We'll also be playing one of your Saturday floor fillers, plus each week a different artist tells us all about themselves in our 'Introducing' slot. Previous acts we've talked to before they hit the big time include La Roux, Little Boots and Laura Marling. This week it's the turn of Canadian singer songwriter Dan Mangan.