Pacino Joins Chicago

On Aug. 2, Chicago fans got to be part of a set at the Greek Theatre as Al Pacino filmed a scene from his upcoming film, “Imagine,” during the band’s concert intermission.

Cameras were wheeled onstage, where Pacino took on the role of aging rock star Danny Collins and the audience was coached to chant the character’s name as he took the stage to sing.

Yes, sing.

“This is an improvisation,” Pacino told the crowd. “You just came in and got it. That’s not easy.”

In the meantime, Chicago members remained on stage to watch and clap along during the 25-minute filming.

Earlier in Chicago’s set, actor Joe Mantegna of “Criminal Minds” joined the band to sing “If You Leave Me Now.”

And Pacino returned to the stage to sing during Chicago’s encore “25 or 6 to 4.”

“For a shy guy from the South Bronx, this has been great,” Pacino said.