Unfinished Business, scheduled to begin at 8 PM, "is a tribute to her good friend and colleague, Brian Lasser," according to press notes. "Lasser was a composer/lyricist and won an Emmy for his song 'Hold Me.' He also was Mason's music director before his death in 1992. Join Karen as she explores 16 years of discovery, friendship, laughter, music and heartache through the songbook of Brian Lasser."

As CAP21 approaches its 20th anniversary, the Concerts for CAP21 series celebrates the accomplishments of the organization and its goals for the future.

Mason's other Broadway credits include Wonderland, Hairspray, Mamma Mia!, Sunset Boulevard, Jerome Robbins' Broadway and Play Me a Country Song. She is also the recipient of ten MAC Awards, three Bistro Awards, an Outer Critics Circle Award and two Drama Desk nominations. Visit Mason's page at the Playbill Vault.

Ticket prices for Karen Mason: Unfinished Business range from $25-$100. CAP21 is located at 18 West 18th Street. For more information and tickets, call (646) 213-5488 or visit CAP21.org.