Wikipedia
R.E.O. is the sixth studio album by REO Speedwagon, released in 1976. It peaked at number 159 on the Billboard 200 chart in 1976, It marked the return of Kevin Cronin to the band after a four-year absence. Five of the songs ("Keep Pushin", "Any Kind of Love", "(Only A) Summer Love", "(I Believe) Our Time Is Gonna Come", and "Flying Turkey Trot") were featured on the band's subsequent live album, Live: You Get What You Play For. Many fans refer to the album as C.O.W. (or simply COW) due to the background of the cover art.
This was the band's last studio album to feature original bassist and founding member Gregg Philbin; he would be replaced on the following studio album You Can Tune a Piano but You Can't Tuna Fish, by bassist Bruce Hall. This album is co-sung by both Kevin Cronin and Gary Richrath. On previous albums ( Ridin' the Storm Out, Lost in a Dream, This Time We Mean It) Richrath would generally only sing one song; however on this album he equally shares the vocal duties with Cronin.