Def Leppard apparently only whetted its appetite for country music by singing with Tim McGraw on the new 'Songs From the Sparkle Lounge.' Now, the British group will appear with 18-year-old Taylor Swift -- who once sang about Tim McGraw -- on a 'CMT Crossroads' episode set to tape in Nashville in October.

"Every time I've seen Crossroads on CMT I've always thought, 'If I ever get to do one of those, it has to be with Def Leppard!' So this is really a dream come true for me," says Swift. "I have been screaming the words to Def Leppard songs for years."

How many years? Could be all of them, as Swift was born two years after the arena rockers released 'Hysteria.'

The October taping will be at least the band's second trip to Nashville in three months. The group plays Nashville's Sommet Center on Friday, August 1. According to Pollstar, Tim McGraw has that night off.

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