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Video: John Lennon in today in Rock and Roll history
Through the years LAS VEGAS - JUNE 26: (L-R) Yoko Ono and Sir Paul McCartney stand next to a plaque of John Lennon during a dedication ceremony for the plaque and one for George Harrison as part of the first anniversary celebration of "The Beatles LOVE by Cirque du Soleil" show at The Mirage Hotel & Casino June 26, 2007 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images) (Ethan Miller/Getty Images)