The timing may have played a role, but a new poll says Elvis Presley is easily the greatest rock 'n' roll star of all time. The A-B-C News poll found almost 40 percent of those interviewed say Elvis is, indeed, The King. Everybody else got only single-digit support -- including Jimi Hendrix, John Lennon, Mick Jagger, Bruce Springsteen, Paul McCartney, Eric Clapton, and Michael Jackson. The poll also found that 40 percent of those quizzed think Presley was a good role model. Almost 60 percent think he wasn't. And almost 40 percent of adults aged 18-to-34 say they're fans.