Brian Wilson says 'I'm sure by early next year we'll be ready to rock'
Eight band members' children have united to form a tribute group called California Saga
Brian Wilson and co add a second London date to their European tour
Focus Creeps are behind the promo clip for 'That's Why God Made The Radio'
The song is the second to be taken from forthcoming album 'That's Why God Made The Radio'
Pop legends will bring their 50th anniversary tour to London later this year
Plus the band give an update on their new record
Track will be the first single from legendary band's reunion album due in June
Brian Wilson has contributed 'a lot' of the material, says band member Bruce Johnson