EXCLUSIVE UPDATE: Seth Rudetsky, Liz Callaway, Melissa Errico Part of Televised Performance Wednesday Night at Democratic Convention

As reported earlier today by BroadwayWorld, a trio of Broadway and cabaret favorites, Seth Rudetsky, Liz Callaway and Melissa Errico, have each announced on social media that they will be performing at next week's Democratic National Convention in Philadelphia.

BroadwayWorld has learned that, although the exact details concerning the performance cannot be disclosed at this time, it will be televised on Wednesday night, July 27th. The prime time speakers scheduled for that evening are Vice-President Joe Biden and President Barack Obama.

Visit demconvention.com.

Liz Callaway is a Tony nominee and Emmy Award-winning actress, singer and recording artist. She made her Broadway debut in Stephen Sondheim's Merrily We Roll Along, received a Tony Award nomination for her performance in Baby, and for five years, won acclaim as Grizabella inCats. She has also starred in the original casts of Miss Saigon, The Three Musketeers, and The Look of Love. Off-Broadway she received a Drama Desk nomination for her performance in The Spitfire Grill (Playwrights Horizons), and also appeared in Brownstone (Roundabout), No Way to Treat a Lady,Marry Me a Little, and Godspell. Other New York appearances include the legendary Follies in Concert at Lincoln Center, A Stephen Sondheim Evening, Fiorello!(Encores!), and Hair in Concert. Regionally, she starred as Venus in the Chicago Ovations! production of One Touch of Venus, in Elegies at Reprise! in Los Angeles, and Fascinating Rhythm at Hartford Stage. She also played Norma Desmond in Sunset Boulevard at Pittsburgh CLO.

Melissa Errico has starred in seven Broadway musicals and released several major solo CDs:Blue Like That (EMI/Capitol Records), Lullabies and Wildflowers (VMG/Universal), Legrand Affair (Ghostlight/Sony) and the most recent (2015) What About Today? Melissa Errico Live at 54 Below (Broadway Records) which was followed up immediately by a DVD. Her digital releaseMore Lullabies and Wildflowers was released on Mother's Day 2015 as a benefit for the tenth anniversary of her charity, The Bowery Babes, a NY 501c-3. She has been called everything from "divine" to "the voice of enchantment" to "one of the most valuable assets of the musical theater" by the New York Times, as well as "incandescent" (New York Daily News) and "blessed with every attribute a grand dame of Broadway requires: star power, voice, looks, ability, personality, technique. An aphrodisiac, as it were, that galvanizes a musical into life," (Clive Barnes). "Earthy and soulful, she both sparkles and is unmannered," (USA Today).

Seth Rudetsky is the afternoon host on Sirius/XM Satellite Radio's ON BROADWAY as well as the host of SETH SPEAKS on Sirius/XM Stars. As a pianist, Seth has played for more than a dozen Broadway shows including RAGTIME, LES MIZ and PHANTOM. He was the Artistic Producer/Music Director for the first five annual Actors Fund Fall Concerts including DREAMGIRLS with Audra MacDonald (recorded on Nonesuch Records) and HAIR with Jennifer Hudson (recorded on Ghostlight Records, Grammy Nomination). In 2007 he made his Broadway acting debut playing Sheldon (singing "Magic to Do" in a devastating unitard) in THE RITZ directed by Joe Mantello for The Roundabout Theater. Off-Broadway he wrote and starred in the critically acclaimed RHAPSODY IN SETH (directed by Peter Flynn) at the Actors Playhouse and has also appeared on TV on LAW AND ORDER C.I. and had a recurring role on ALL MY CHILDREN. As an author, he penned the non-fiction Q GUIDE TO BROADWAY, the novel BROADWAY NIGHTS and the recently published MY AWESOME/AWFUL POPULARITY PLAN (Random House). BROADWAY NIGHTS is available on Audible.com starring Kristin Chenoweth, Andrea Martin and Jonathan Groff and MY AWESOME/AWFUL POPULARITY PLAN stars Jesse Tyler Ferguson, Ana Gasteyer and Megan Hiltly. Seth played himself on Kathy Griffin; My Life on the D-List, was the vocal coach on MTV's LEGALLY BLONDE reality show and starred opposite Sutton Foster in THEY'RE PLAYING OUR SONG for the Actors Fund. Recently, he co-wrote and starred in DISASTER! (which the NY TIMES called a "triumph"), and he currently writes a weekly column on Playbill.com and tours the country doing master classes and performing his one-man show "DECONSTRUCTING BROADWAY".