 Billboard ranks them 80-40, counts them down. Well, their first Top 40 hit was back in 1970, the song Make Me Smile. They hit number one in 1976 with If You Leave Me Now and in 1982 with Hard to Say I'm Sorry. Now their 30th Top 40 hit is the biggest mover in the countdown this week, up eight notches to number 23, I Don't Want to Live Without Your Love. Here's Chicago. Thought it wouldn't matter