"We were just trying to act cool." says Taylor Swift, who managed to remain calm during a taping for an upcoming episode of CMT Crossroads with her idols, Def Leppard. Swift, 18, and Joe Elliott, 49, split vocals on cuts like the Leppard's 1987 hit "Pour Some Sugar on Me," which very well may have been the song playing during Swift's conception.
This is a story from the November 13, 2008 issue of Rolling Stone.