Judy Garland Jennifer Hudson Julie Andrews Kristin Chenoweth Diana Ross Supremes Idina Menzel Natalie Cole Jackson 5 Smokey Robinson John Travolta The Marvelettes Linda Eder Blues Brothers Ray Charles Lola Flores Rosemary Clooney Amy Winehouse Gene Kelly Eva Cassidy Kristen Chenoweth Sara Ramirez Peggy Lee Mickey Rooney Flanagan And Allen Natalie Cortez John Charles Thomas Dead Capo Billie Holiday Nina Diaz Megan Hilty Coasters La Lupe Mary Lou Williams Patti Lupone Tex Ritter Isabelle Boulay Nashville Cast Nana Mouskouri Dustbowl Revival Plasterbrain Julie London Mary Wells Nina Bernadette Peters Frank Sinatra Lesley Garrett Brandi Chavonne Massey Osmond Brothers