By | November 05 2012 9:19 PM

A letter from John Lennon to Eric Clapton in which the former Beatle promised he could take Clapton to new musical highs if they worked together is hitting the auction block. The hand-written letter will go on sale at the Profiles in History auction in Los Angeles on Dec. 18, according to Reuters. Auctioneers expect the document to fetch somewhere around $30,000.