He has an unpublished recording of Elvis Presley and Carl Perkins singing "Blue Suede Shoes". Klein can be heard weekly on SiriusXM channel 19 Elvis Radio, and on the George Klein Original Elvis Hour on WLFP FM.
He has also written two books. The first, Elvis Presley: A Family Album, was published in 2007 by Little, Brown and Company, an imprint of Hachette Book Group. The second, Elvis: My Best Man: Radio Days, Rock 'n' Roll Nights, and My Lifelong Friendship with Elvis Presley, was co-written with Chuck Crisafulli and published in 2011 by Three Rivers Press.