David Larsen heads a cast which also features Justin Guarini, the frizzy-haired runner-up in the first "American Idol" TV competition. Newcomer Larsen, a 2002 Carnegie Mellon graduate, has regional credits at North Shore Theatre, Pittsburgh CLO, City Theatre in Pittsburgh, and Dallas Summer Musicals. He plays the head of "a group of small-town teenagers on a life-changing odyssey to the Promised Land: the beaches of Southern California."

John Carrafa (Urinetown, Into the Woods) will direct and choreograph. Also in the cast are Titus Burgess, Heath Calvert, Tom Deckman, Elizabeth Fye, Geoffrey Hemingway, Julie Martell, Tyler Maynard, Megan McGinnis, Nina Negri, Julie Reiber, David Resier, Jose Restrepo, Jonathan Richard Sandler, Krysta Rodriguez, Allison Spratt, Emily Toress and Haneefah Wood.

There is no announced timetable for the Beach Boys musical, which will be produced by the Dodgers, but New York theatregoers shouldn't be surprised if they see the show on a Broadway stage this fall. Sources have Good Vibrations making a quick transfer to Gotham by the end of 2004 if the Vassar workshop goes well.

As previously reported by Playbill On-Line, the new show has an original book by Richard Dresser (Rounding Third, Below the Belt) and uses the songs of the Beach Boys. The plot, however, is not a biographical tale of the blond-mopped California band that celebrated cars, girls and surfing in the 1960s.

"It will be a new hybrid," Carrafa told Variety, "somewhere between Mamma Mia! and Movin' Out."

The Broadway-aimed show would be the Broadway directorial debut for the choreographer of Into the Woods, Dance of the Vampires and Urinetown.

For tickets and information, call (845) 437-7235 or www.newyorkstageandfilm.org.