Band will play a private concert for Bart in upcoming episode<br />
Chris Martin and co sell more than one million album downloads in the US
Band to show new video on the big screen
'I'd love to have a cup of tea with them,' says singer
Chris Martin wants follow-up to 'Viva La Vida' to have 'less fanfare'
Frontman says lawsuit has inspired him to write better songs
You can download it now
Will Champion bullish about plagiarism claims
Singer accuses Chris Martin and co of ripping him off
Band to give away live CD at gigs and as a download