Ozzy Osbourne's Black Sabbath bandmate Tony Iommi is suffering from lymphoma, RadarOnline.com has learned.

Doctors have said the iconic metal guitarist, 63, is in the “early stages” of the disease, and currently developing a treatment plan with doctors.

A statement from the band urged fans to “send positive vibes to the guitarist at this time.”

“The Iron Man ... remains upbeat and determined to make a full and successful recovery,” according to the statement.

The band, who's sold more than 70 million albums, has been planning a reunion centered around its first studio album in 33 years. The group will reportedly move recording sessions from Los Angeles to England to help with Iommi's schedule.

Iommi's memoir, Iron Man: My Journey Through Heaven and Hell with Black Sabbath, is in stores now.

Get your hair gel out and dust off your black leathers...

After recording their last studio album together in 1978, the original members of Black Sabbath announced on Friday that they are reuniting – and RadarOnline.com has the video.

Ozzy Osbourne, Tommy Iommi, Geezer Butler and Bill Ward held a press conference at the Whiskey A-Go-GO in Los Angeles and revealed that they will return to the studio with legendary music producer Rick Rubin this year and also embark on a world tour.  They will also headline Britain's Download Festival next June.