"OK, I just have to say this: I am sick & tired of Randy Jackson bashing what [he] thinks is Bway singing! It's soo ludicrous!" said Buckley via her Twitter account. "With respect, 'Dog,' your opinion is whack & uninformed!"

On the Fox hit television series, Jackson and "Idol" judges have often dismissed singers for sounding too theatrical in their style of singing. Buckley responded with, "[Broadway] is a place. Musical Theatre as a form encompasses many styles & a wide variety of individual voices."

"[Broadway] is not a 'style'," the Tony winner continued. "On any given night in any given theatre, the shows, the voices, the music is widely variable."

Following Buckley's multiple Twitter posts—where she added that Randy's comments encourage aspiring performers to believe that Broadway is "inferior and uncool"—"Idol" producer Nigel Lythgoe responded.

"I don't believe I have ever dissed Broadway either in 'Idol' or '[So You Think You Can Dance],'" Lythgoe tweeted to Buckley. "As far as I am concerned it is a Mecca for talent." He added, "I will certainly speak with Randy. I had the pleasure of seeing your outstanding performances in Cats and Pippin."

Buckley won the Tony Award in 1983 for her performance in Cats. She was nominated for her performance in Triumph of Love and has also been seen on Broadway in 1776, Pippin, Song and Dance, The Mystery of Edwin Drood, Carrie and Sunset Boulevard.

Former "American Idol" contestants who have taken to Broadway after their stint on "Idol" include Fantasia Barrino (The Color Purple), Clay Aiken (Spamalot), Constantine Maroulis (Rock of Ages), Diana DeGarmo (Hairspray), Frenchie Davis (Rent) and Jordin Sparks (In the Heights) as well as former "Idol" judge Kara DioGuardi (Chicago), among others.