On May 25, Seth Rudetsky's weekly cabaret variety show at NYC's Don't Tell Mama, lets the Cats out of the bag. That's because his guests will be Cats veteran Liz Callaway and current Cats cast-member -- and ultra-veteran -- Marlene Danielle, who holds the Giunness Book of Records record for longest-running performer in a Broadway show.

Both will offer feline remembrances of the history-making musical that had been set to end in June but has now been extended until Sept. 10.

Rudetsky, a comedian and writer for Rosie O'Donnell's TV show, hosts his variety show every Thursday at 6 PM. There's a 2-drink minimum, but the $10 cover charge is donated to Broadway Cares/Equity Fights AIDS.

For information on "Seth's Broadway Chatterbox" at Don't Tell Mama, 343 West 46th Street, call (212) 757-0788.

Previous guests on "Chatterbox" have included Andrea Martin, Terrence Mann, Marin Mazzie, Kristin Chenoweth, Bebe Neuwirth, Graciela Daniele and Norm Lewis. Upcoming guests include Tony-winner Roger Bart You're A Good Man Charlie Brown) and nominee Kevin Chamberlin (Dirty Blonde) (June 1), and Faith Prince (James Joyce's The Dead) (June 8). -- By David Lefkowitz