Karr will headline "an evening of funkified songs and thrilling pop music," according to press notes. He will present original material as well as covers of songs by Sara Bareilles, Hanson, Michael Jackson, Stevie Wonder and others.
"Glee" star and Spring Awakening vet Jenna Ushkowitz and singer-songwriter Alana Grace will join Karr at the concert.
Brett Ryback will be the evening's musical director.
BARRE vt is located at 1714 N. Vermont in Los Angeles. Tickets are $15 and are available at showatbarre.com.