As previously announced, Harada will step into the "Broadway Spotlight" — the series that presents concert evenings with stars of the musical theatre — Feb. 2. Her Q co-star, John Tartaglia, will offer his solo evening April 5. (Celia Keenan Bolger will enter the "Spotlight" March 1.)

Harada, who portrays the comical therapist Christmas Eve in Avenue Q, will be joined on stage at the intimate theatre by Swing!'s Everett Bradley, Assassins' Alexander Gemignani and writer Michael Heitzman. Alan Muraoka will direct Harada's "Spotlight" debut, and David Holcenberg will be the evening's musical supervisor. Avenue Q conductor Gary Adler will music direct and accompany Harada on piano; the band will also include Jeffrey Lee Campbell and Michael Croiter. Harada is expected to perform songs by William Finn, Ahrens and Flaherty, Lopez and Marx, Goldrich and Heisler, Andrew Lippa, Amanda Green, Phoebe Snow and Paul Simon.

On Broadway, Ann Harada has been seen in Seussical and M. Butterfly; her other theatrical credits include Falsettoland; The Moment When; 1,2,3,4,5; Working; Golden Child; Scapin; and Das Barbecü. Harada was seen this past season in two benefit concerts, Chess and Children of Eden.

John Tartaglia plays Princeton and Rod in Avenue Q, his Broadway debut. He appeared in the recent Children of Eden benefit concert and in the City Center Encores! presentation of Carnival. His TV credits include eight seasons on "Sesame Street" as well as "Animal Jam," "Bear in the Big Blue House" and "The Rosie O'Donnell Show."

The Ars Nova Theater is located in Manhattan at 511 West 54th Street. Tickets are priced at $12; doors open at 7:30 PM. Call (212) 868-4444 for tickets or go to www.SmartTix.com.