It's a good thing nobody expected Leppard to change its spots
The seemingly odd pairing of pop-metal band Def Leppard and middle-of-the-road crooner Bryan Adams can be explained by one guy, superproducer Robert "Mutt" Lange.
Lange, best known these days as Mr. Shania Twain, was the man behind both acts' biggest albums.
"Because of Mutt, we've known Bryan for ages," said Def Leppard frontman Joe Elliott during a phone interview from a tour stop in San Francisco. "In 1990, Mutt was working with both of us at the same time. Bryan got up onstage with us in Paris one night. We know each other - we don't have to get to know each other. So it makes sense."