Chicago plays Bethel Woods Center for the Arts on Tuesday, Sept. 1 at 7:30pm and WPDH has free tickets this week. Listen afternoons at 4:20pm for the Mystery Riff to win.

Chicago have toured every year since their inception and are now in their 48th consecutive year of touring. Some Lifetime achievments include induction into the Grammy Hall of Fam in 2014, Multiple American Music Awards, and a star on the Hollywood Walk of Fame. The band has released 36 albums over the years (25 which have gone platinum).

Tickets for The Heart and Soul Tour 2015 with Chicago and Earth, Wind, and Fire at Bethel Woods Sept. 1 are on sale and available through the Bethel Woods box office and ticketmaster.

Check out video below of Chicago performing the classic '25 Or 6 To 4' with REO Speedwagon

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