Some of Chicago's singles will be coming to the Rock Band store next week, with one of the most successful American rock bands of all time delivering a trio of tracks to Harmonix's game.

Written as part of a seven part suite, Chicago’s Billboard chart topping “Make Me Smile”, from the band's second 1970 studio album Chicago II heads up the tracks.

“Feelin’ Stronger Every Day,” from 1973’s Chicago IV from a few years later continues proceedings, with the ballad “If You Leave Me Now,” taken from 1976’s Chicago X rounding things off. Also, if you play them in Rock Band Blitz, you'll earn double coins. Check 'em out.

Chicago Pack 01 - 440 Microsoft Points (160 Microsoft Points each. X = 80 Microsoft Points per track for a Pro Guitar/Pro Bass upgrade O= support for keyboards)

• Chicago – “Make Me Smile” O X
• Chicago – “Feelin’ Stronger Every Day” O
• Chicago – “If You Leave Me Now” O

(All tracks are original master recordings)

Look out for them on the Xbox Live Marketplace from October 23rd.

[Via RockBand.com]