Preliminary plans are underway for a Simon and Garfunkel reunion tour for the fall, sources tell Billboard.com. The agents for Paul Simon and Art Garfunkel are collaborating on "initial explorations"

Preliminary plans are underway for a Simon and Garfunkel reunion tour for the fall, sources tell Billboard.com. The agents for Paul Simon and Art Garfunkel are collaborating on "initial explorations" regarding a tour, which is tentatively set to play arenas.

Aside from a rendition of "The Sounds of Silence" at the Grammys earlier this year, the famed folk/pop duo hasn't performed together since the Concert Event of a Lifetime tour in early 1994. On that trek, the pair played to large crowds, including a sold-out run of 21 shows at the Paramount in New York.

Speculation about a tour was fueled by the Grammy performance, but both parties insisted at the time that nothing was in the works. "Despite speculation that there is a reunion tour in the works, there have been no discussions -- either with their respective managers or with Paul and Art themselves -- about a tour," read a statement issued before the ceremony.

It is not known when the tour would begin. Garfunkel has solo dates booked through mid-November, while a spokesperson says Simon's next Warner Bros. studio album is likely "six to 12 months away."

Meanwhile, the group's classic track "Bridge Over Troubled Water" is about to find new life on Billboard's Hot 100. "American Idol" runner-up Clay Aiken's cover of the track is the B-side of his RCA single "This Is the Night," which is expected to debut later this week at No. 1 on the chart.