Vivian Campbell

Vivian Patrick Campbell (born 25 August 1962) is a Northern Irish heavy metal-blues rock guitarist and songwriter. He became known in the early 1980s as a member of Dio, and has been a member of Def Leppard since 1992 (replacing Steve Clark after his death). Campbell has also worked with Thin Lizzy, Whitesnake, Sweet Savage, Trinity, Riverdogs, and Shadow King. 
Campbell was born in Belfast, Northern Ireland. In June 2013, Campbell revealed that he was diagnosed with Hodgkin's lymphoma.