The first Grey Gardens cast album — representing the musical's Off-Broadway life in 2006 — is soon to be a collector's item. PS Classics expects the new CD to be available in stores and at other internet outlets by April 15.

Don't expect the albums to be next to each other in the record store: Once supplies are gone, the first disc will be replaced by the Broadway album, which the authors see as their definitive version of their work, PS Classics co-founder Tommy Krasker told Playbill.com.

(The earlier 2006 disc has been "drastically marked down," as they say in TV commercials, and can be snagged on the PS Classics website for $4.95, enticing students of musical theatre scores to compare and contrast Korie and Frankel's revisions in the last year.)

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Recorded Feb. 13 by PS Classics, the album is produced by multiple Grammy winner Steven Epstein (The Light in the Piazza). In a rare situation, this new recording will replace the currently-available "world premiere recording," which was also released by the Grammy-nominated label and featured the Off-Broadway cast.

"The new recording will feature the Broadway cast and preserve the significant changes made for the Broadway production by author Doug Wright, composer Scott Frankel and lyricist Michael Korie," according to the producers.

The new album (on one disc) includes four new songs ("The Girl Who Has Everything," "Goin' Places," "Marry Well" and the new ending), one previously unrecorded track ("The Telegram") and all-new performances on several previously recorded songs (including "Mother, Darling," "Peas in a Pod" and "Daddy's Girl").

In addition, the entire album has been completely remixed and remastered. The new recording will also feature an all-new, 32-page color booklet with complete lyrics and new photos.

Following the sold-out spring 2006 run of Grey Gardens, the collaborators (including director Michael Greif) rolled up their sleeves and revised and refined the script and score. The musical moved to Broadway's Walter Kerr Theatre in October 2006 (and continues there).

In the tale of mother and daughter socialites Edith and Edie Beale, Erin Davie plays young Little Edie Beale on Broadway. Sara Gettelfinger played the role Off-Broadway and is heard on the "world premiere recording."

For information about the new Broadway cast recording of Grey Gardens, visit www.psclassics.com.

Also on March 27, PS Classics begins web sales for "This Ordinary Thursday: The Songs of Georgia Stitt," by the composer, lyricist, music director and vocal coach.

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The Grey Gardens score recently won The ASCAP Foundation's Richard Rodgers New Horizons Award for composer Scott Frankel and lyricist Michael Korie, and was also nominated for Drama Desk and Outer Critics Circle Awards.

Orchestrations are by Tony Award winner Bruce Coughlin and Music Director is Lawrence Yurman.

The cast of Grey Gardens includes Christine Ebersole (celebrated for playing dual roles, Edith in Act One and Little Edie in Act Two); Mary-Louise Wilson as a decrepit older Big Edie; five-time Tony Award nominee John McMartin as both "Major" Bouvier and Norman Vincent Peale; Matt Cavenaugh as both Joe Kennedy, Jr. and Jerry; Erin Davie as Young Little Edie Beale; Kelsey Fowler (in her Broadway debut) as Lee Bouvier; Sarah Hyland (title role in Paper Mill's Annie) as Jacqueline Bouvier; Obie Award winner Michael Potts as Brooks Sr. and Brooks Jr.; and two-time Tony Award nominee Bob Stillman as Gould.

Visit www.greygardensthemusical.com.

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PS Classics is the Grammy-nominated label founded in 2000 by Tommy Krasker and Philip Chaffin. The label is known for its diverse line of show albums, solo CDs and songbook recordings. Its cast albums celebrate Broadway (Assassins, Nine: The Musical, Fiddler on the Roof, the recently-released Company), Off-Broadway (My Life with Albertine, Lone Star Love) and regional theatre (First Lady Suite).

PS Classics is distributed exclusively by Image Entertainment.

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Grey Gardens is produced by East of Doheny, Staunch Entertainment, Randall Wreghitt/Mort Swinsky, Michael Alden and Edwin W. Schloss, in association with Playwrights Horizons.

Tickets are available by going online to www.telecharge.com, calling (212) 239-6200 or visiting The Walter Kerr Theatre box office, 219 W. 48th Street.