Idina Menzel and Marvin Hamlisch to Appear at Ravinia Festival on July 8

The actress will formally announce the concert during a special live appearance on Chicago's WTTW at 9pm. on Monday January 9, which will include a special airing of her new symphonic PBS special,

Menzel won the Tony for Wicked and has also appeared on Broadway in Rent. She currently stars on FOX's hit series Glee. Her film credits include Rent and Enchanted.