I have to confess, I can do a mean “Keep on Lovin You” if I have a few beers in a karaoke bar.
Their best song, IMHO is “Ridin’ the Storm Out” followed closely by “Time for Me to Fly” - both from the 70s.
Now when I think of REO, all I can think of is the Karaoke singer in "Paul Blart: Mall Cop"