“I always felt like I was the weak link in the band. I felt that my guitar playing was was too raw and unpolished”: How guitar hero Vivian Campbell overcame self-doubt to create a heavy metal masterpiece with legendary singer Ronnie James Dio

Vivian Campbell and Ronnie James Dio onstage in 1985 as they tour Campbell's final studio album with Dio, Sacred Heart. Campbell is playing a well-worn Charvel S-style electric guitar.

It takes a brave guitarist to step into a role previously played by Ritchie Blackmore and Tony Iommi – but that’s exactly what Vivian Campbell did when he joined Dio in 1982.

At that time, he was just 20 years old.