“A fierce debut! Hartmann is a confident newcomer who has an exceptional set of brassy pipes that produce a powerful, clarion sound reminiscent of Patti LuPone. She has the goods to make waves once the word gets out. Not only can she sing, she can interpret.”
John Hoglund - Backstage Magazine
"One truth is obvious: Hartmann has a three-dimensional dramatic personality with an expressive voice to match. She may be a cabaret novice, but she handles her songs with a competence that belies her inexperience"
Peter Leavy - Cabaret Scenes
“There is no one like Jenn Hartmann on the scene or anywhere. She blends folk-rock with Broadway, cabaret, and comedy. When someone can pull this off who also sings great, and succeeds on all levels mentioned above, look out!”
– Gabriel Levitt, Jezebel Music