Few people expected us to book Chas & Dave for Sonisphere 2014, but it is Knebworth House's 40th anniversary as a gig venue and as Chas says: "We went down well at Knebworth in '79. Not surprised we got a return booking."

Here, in an interview with Iain Lee on BBC Three Counties Radio, he talks about the Chas & Dave songwriting process, their new album, how they missed Led Zeppelin's set when they supported them and how they could be on the same bill as anyone, even Pavarotti and still "go down a storm". Click here or on the image to hear the interview. It's around 2 hours 51 mins in to the programme.

Early Bird Weekend Tickets for Sonisphere 2014 are on sale now. The highly popular deposit scheme will also be running from now until April, meaning fans will be able to reserve their tickets for an initial payment of just £50. Check here for further details.