In a head-to-head Sirius Satellite Radio interview with "Sound of the Beast" author Ian Christe, BLACK SABBATH guitarist Tony Iommi exclusively reveals this week that he has studio tapes of BLACK SABBATH jamming with LED ZEPPELIN during the mid-1970s."BLACK SABBATH used to jam with LED ZEPPELIN all the time." reports the Birmingham-born Iommi. "We'd be trying to rehearse and they'd come interrupt us. I've got some tapes floating around the house." During the exceptional in-depth session Iommi also reveals stories of having John Bonham serve as best man at his raucous first wedding, being chastised by Bill Ward's mom after setting her son on fire, his early days playing Buddy Holly cover songs in the 1960s, receiving a Gibson SG from Leslie West, and the desire to record new BLACK SABBATH material. The interview airs twice this week (Tuesday, May 3 at 9:00 p.m. EST and Friday, May 6 at 1:00 p.m. EST) on Sirius "Hard Attack"/27's weekly "Bloody Roots" heavy metal history lesson, hosted by Christe. The show will also include rare SABBATH demo tracks, and two songs from the upcoming Iommi solo album, "Fused". For more information, visit www.sirius.com/hardattack.