As previously reported, Ahrens and Flaherty's Ragtime and A Man of No Importance collaborator, Tony winner Terrence McNally, will host the 7 PM concert conducted by Pops music director Steven Reineke.

A black-tie dinner follows the April 30 benefit gala.

Previously announced to perform are Liz Callaway, Kevin Chamberlin, LaChanze, Jason Danieley, Boyd Gaines, Kecia Lewis-Evans, Darlene Love, Rebecca Luker, Marin Mazzie, Tiler Peck and Andrew Rannells.

Lyricist Ahrens and composer Flaherty are the Tony-winning and Oscar-nominated team of the stage musicals Ragtime, Once On This Island, Seussical, My Favorite Year, A Man of No Importance, Dessa Rose, The Glorious Ones and the feature film "Anastasia." They are currently working on Rocky, a musical based on the Sylvester Stallone film. You can read more about Lynn Ahrens and Stephen Flaherty at the Plabvill Vault.

Single tickets to the concert-only are $60 and $90. To purchase, call CarnegieCharge at (212) 247-7800, visit the Carnegie Hall Box Office at 57th St. and 7th Ave., or online at Carnegiehall.org.

Tickets to the full gala evening range from $1,000 (for one concert ticket and dinner seating) to $50,000 (for a first-tier box and dinner table for eight). For more information about the black-tie benefit dinner dance at The Plaza Hotel, call (212) 765-7677 or visit NewYorkPops.org.