A long lost John Lennon guitar is expected to fetch over a million dollars at auction. 

The 12-string acoustic guitar is up for bid today as part of Julien's Auctions' Music Icons sale.  The head of the auction says it's the same guitar Lennon played on the song "You've Got to Hide Your Love Away" in the movie "Help!" 

The guitar was presumed lost for 50 years until it was found recently in the attic of a home in the British countryside. 

The auction is being held today and tomorrow at the Hard Rock Cafe in New York's Times Square.  Bids can be made online at juliensauctions.com.