Rory was orginally asked to join the Rolling Stones (as lead guitarist), and turned them down
[youtube]http://www.youtube.com/watch?v=-k4iocWURPk[/youtube]
Rod Stewart was asked to be the lead singer of Zep and turned it down
[youtube]http://www.youtube.com/watch?v=m4PXMCCTMwM[/youtube]