Disclosure: The following links will take you to various online merchants outside of allbutforgottenoldies.net that sell recordings with the song featured on this page. Please note that these are referral or affiliate links from which allbutforgottenoldies.net may receive, at no additional cost to you, a commission if you should make any purchases through them.
Amazon.com has an audio clip of "25 or 6 To 4" by Chicago on the album listed below. To listen to this clip, click on the album name and you will be taken to a CD product web page with a list of album tracks linked to song clips.
The Very Best of Chicago: Only the Beginning - Chicago - Rhino Records (2 CDs)The Amazon.com MP3 Store also has a clip of the above song on the album listed below. Click on the album name and you will be taken to a list of mp3 album tracks with audio samples that include the above song.
Chicago II - ChicagoCDUniverse also has a clip of the above song on the album listed below. Click on the album name and you will be taken to a list of albums, including the one below, that include the above song. (Note: Those albums with music note icons all have song clips. To see the entire list of CDs, you may need to scroll down all the way to the bottom as many songs have lyrics and other information displayed at the top.)
Chicago II - Chicago