Let's play six degrees...

Six degrees of guitarist Vivian Campbell:

For more than a decade, Campbell has rocked with Def Leppard. He joined the band in 1992 after Steve Clark died of an accidental overdose.

Before the Leps came knocking, Campbell was already established as a famous glam guitar god.

His first big break was for Irish glam band Sweet Savage. They were very big with fans of the Cathouse Club, a Sunset Strip mainstay of the 80s. The club was owned by Taime Down, lead singer of glam band "Faster Pussycat."

Campbell was just 15 when he joined Sweet Savage (drummer Rick Allen was also 15 when he joined Def Leppard).

Then next stop for Campbell was the British band Dio. That band is an off-shoot of Black Sabbath. Campbell performed at the Monsters of Rock show with Dio. Def Leppard was also on the bill.

Band tensions meant a job search, and Campbell found himself working  with Whitesnake (!). After the band's massive 1988 arena tour,  lead singer David Coverdale canned Campbell.

1988 was a huge year for Def Leppard. The band toured more than a year in support of the multi-platinum "Hysteria."

While waiting for his next job, Campbell played guitars for Lou Gramm.

Gramm was lead singer of a little band known as Foreigner.

And we're not done yet, kids.

Currently, Campbell has two side projects, Riverdogs and Clock. Riverdogs features former Journey band members.  Clock features a vocalist who performed on Def Leppard's "Retro Active" album. The vocalist is P.J. Smith. The song is a cover of "Action" by 70s British glam super group Sweet. One of the band members of Sweet left for Deep Purple. As we all know, David Coverdale eventually became lead singer for Deep Purple.

So, we've made our connection.

And now I have a headache.