Pop albums with an opening overture?


Ray Thomas album "From Mighty Oaks" has a very nicely done opening orchestral overture of the album by the same name.  Never thought about it before before digging this album out for conversion to music library.   Not a very common thing for a non themed pop album to do that.   Any others come to mind?   

128x128mapman
You could make an argument for Quadrophenia, amid the slamming surf are faint fragments of melodies you will hear later, much in the fashion of an opera overture.
Goodbye Yellow Brick Road...  "Funeral For a Friend"
Alan Parsons "I Robot"
Steve Miller "Fly Like an Eagle"
Pink Floyd  "Speak To Me"