BLACK SABBATH ALREADY CANCELING ONE CONCERT

Black Sabbath guitarist Tony Iommi's acknowledgment that he has lymphoma has reportedly caused at least one cancellation on the band's schedule. Billboard cites "multiple industry sources" as saying the band was set to headline one of the days at the Coachella Festival, which is running April 13th through the 15th and April 20th through the 22nd with the same lineup both weekends. The headlining acts announced Monday are Radiohead, The Black Keys and rappers Snoop Dogg and Dr. Dre, and Billboard admits that it doesn't know which act -- if any -- replaced Sabbath at the last minute.

--Sabbath's spokesperson tells us, "We have no information on this," and there's been no comment yet from Coachella's promoters.