Paul Simon says there is an air of phoniness to some of his earlier works.

"They're naive and pretentious," he told The Washington Post. "They're young. I'm adopting a voice that I didn't really own, an attitude that I really wouldn't have at the age of 25 or 26, some kind of world-wary alienation."Simon, whose new album, "The Rhythm of the Saints," features a Brazilian sound, says he didn't even like "I Am a Rock," one of Simon and Garfunkel's biggest hits.

So why were Simon and Art Garfunkel so popular?

"I'm sure a large part of the audience was as pretentious as I was," Simon says.