Karr's concert, entitled An Awfully Big Adventure, will be directed by Holly Anne Ruggiero with musical direction by Charity Wicks. Show time is 11:30 PM. Karr's special guests for the evening will include Erica Rowlett Aubrey (Music in the Air, Museum Pieces), Joey Dudding (A Chorus Line, La Cage aux Folles), Lauren Lim Jackson (Memphis, High School Musical), Alice Lee (Spring Awakening), Eryn Murman (Spring Awakening) and Jamaal Wilson (The Jesse Owen Story, Junie B. Jones). The Broadway Boys – Landon Beard, Danny Calvert, Maurice Murphy and Marty Thomas — will also be on hand to perform.

Karr, according to press notes, "will take the audience on his 'awfully big adventure' with a throwback to his Nashville upbringing, featuring a mix of country, R&B, and Broadway tunes."

In memory of his grandmother, Ann Roth, all proceeds will be donated to the Alzheimer's Foundation of America. Roth recently lost a 13-year battle to the disease.

Tickets, priced $12, are available by visiting www.joespub.com or by calling (212) 967-7555. Joe's Pub is located within the Public Theater at 425 Lafayette Street.