You can listen to what was said for yourself at the link below. Their comments about the band begin at around 22:00:00, so you can fast forward to that point. They basically rip one of the producers a new one for wearing a Fleetwood Mac t-shirt. Then, they begin to make fun of the band, and people who would like them.
http://www.bbc.co.uk/radio/aod/mainf...?radio1/moyles