Joel and John's current outing, which is the duo's fifth co-headlining run since 1994, has already sold out multiple nights--as many as six--in Boston; Hartford, Conn.; Philadelphia; and Washington, D.C. The pair's previous Face to Face excursion was the No. 5 top-grossing tour of 2001, and raked in a total of $57.2 million over the course of 31 shows.

John, who wrapped up the U.S. leg of his solo run last month, is touring in support of last year's "Songs from the West Coast" (Rocket/Universal), which features the singles "I Want Love" and "This Train Don't Stop There Anymore."

Joel's most recent releases are two albums that simultaneously surfaced in October. The first, "Fantasies & Delusions: Music for Solo Piano" (Columbia/Sony Classical), features pianist Richard Joo performing ten of Joel's original piano compositions. The second, "Essential Billy Joel" (Columbia), is a two-disc set that houses 36 of the musician's previously released pop hits and two classical compositions.

Joel, along with Tony Bennett, recently received a Grammy nomination in the Best Pop Collaboration category for a duet rendition of Joel's classic song "New York State of Mind" that appears on Bennett's "Playin' with My Friends: Bennett Sings the Blues" (Columbia), released last November.