We are working on a an alphabet theme here on My Lost Treasure. We're doing a week of songs that begin with the letter A, then a week of Bs, and so on and so on. Kind of like the Letter Game that we play every day on The Boris and Robyn Show. This week it's X songs. So we're doing a week of number songs.

I was just a kid when Chicago Transit Authority first came out. They were different from other rock bands. They had what seemed like a whole bunch of members, even though I believe it was only seven. They had horns. And their songs were really good. They quickly became one of most popular bands of the time. I'm sending today's lost treasure to Suzy Cerone, a big Chicago fan.

Well be kicking off a week of Y songs on Monday. Got a song that starts with the letter Y that you would like to hear? Let me know at robyn@wpdh.com or find me on facebook. Thanks! And don't forget, when we get to the end, we're going to start all over again.

Bonus Video: Robyn Taylor’s Rock News