Paul Simon was joined by former Warner Bros. labelmate Michael McDonald on Wednesday night (August 14th), when the singer-songwriter played his second of two gigs at Hawaii's Maui Arts & Cultural Center. Rolling Stone reported the former-Doobie Brother joined in on keyboards for the Simon & Garfunkel standard, "Cecilia," which incorporated a jam of the Billy Preston chart-topper "Will It Go 'Round In Circles."

Earlier in the show, local Hawaiian musician Keola Beamer, took the stage with Simon to perform two of his songs, "Seabreeze" and "Honolulu City Lights."

Although he's rated as one of the most serious singer/songwriters of his generation, Paul Simon has long wished that his humor would've shined a bit more brightly in his material: "Well, I always put some jokes into my songs, but sometimes they don't. . . sometimes people don't read 'em as jokes. I think that's because most of the time people think of me as very serious, so they're not expecting a joke to come. And also, there's something about my voice that it doesn't tip off a joke. It still sounds serious. I mean, it's a quality that I wish I could have in my voice; a sense of irony or laughing."

AUDIO: PAUL SIMON ON THE HUMOR IN HIS SONGS