Beatle, husband to the extraordinary Yoko Ono, and namesake of the Liverpudlian airport, John Lennon would have turned 75 tomorrow, Oct. 9. To celebrate, rock historian Theron Kabrich has put together a show called Imagine Peace: the Artwork of John Lennon at the San Francisco Art Exchange. Over 60 works of original Lennon art will be displayed through the end of the month.