First, you speed up a classic instrumental solo track by John Lennon. Then, you slow down an accapella version of another solo Paul McCartney smash. Result: Fresh Beatle-y goodness.

Titled "Imagine The Band," this eerie mashup will have you hearing 'Imagine' and 'Band on the Run' in a whole new way -- and, perhaps, wondering if this is what a post-Beatles collaboration between Lennon and McCartney might have, in fact, sounded like.

McCartney, in the past, has given his stamp of approval to such things -- calling mashups "a tribute" -- though, at least in the case of Danger Mouse's memorable 2004 'The Grey Album,' record label executives disagreed. EMI sought to halt the distribution of that project, which combined Jay-Z raps with samples from the Beatles' self-titled 1968 album.

'Imagine the Band,' though it swept across the web this week, was actually produced by Mark Vidler and Go Home Productions some two years ago, Vidler says.