>> stahl: scott borchetta was an executive at another label. >> borchetta: you don't have artists walkings and saying, "you know what? i don't think i need another year of development. i'm going to go." all right. >> stahl: she did it, though. >> borchetta: she absolutely did it, at 14. >> stahl: borchetta heard taylor, liked her songs, and offered to sign her as his first artist on a new label he was starting. she took the risk and it paid off. >> borchetta: as of this week, "speak now" has sold five million copies worldwide. ( cheers and applause ) >> stahl: "speak now" is her third multi-platinum album, and she's been on a worldwide 76- city tour to promote it. the show is an extravaganza, with aerialists and fireworks on stage... and frantic darting about below, as taylor runs in and out of quick-change rooms, and braces herself inside this glass contraption, preparing to be tossed in the air. >> taylor swift: i'm praying that i'm not going to break my leg. i'm like, "dear god, i'm very clumsy. i'm not a gymnast, i'm not graceful. please don't let me break my leg." that's what's going