Chicago & Friends in Concert, will premiere in select theatres across the country, on April 18th and April 21st.

Founding member of the legendary Rock & Roll Hall of Fame band, Lee Loughnane said: “This concert film is a unique approach to any of our previous live performances. We very rarely play with guest artists, much less seven of them.”

Those celebrities include Steve Vai, Chris Daughtry, and Robert Randolph.

The film captures the unplugged acapella arrangements of Chicago’s hits as well as a full concert experience.