http://www.youtube.com/watch?v=tWeejHJxGjs
Is it just a common song structure or did they just borrow ideas off each other, i find it interesting either way, its kinda nice to think that they are taking these earlier songs and giving them a reworking for a more contempory audience.
Spirit also had a song similar
http://open.spotify.com/track/56LAHIIyWXTg7vYmVSGBUf
about a minute in.