If I recall correctly, BLUE BIRD was suppose to be a triple A-side single but was changed. I even remember they released a statement. So it would've been BLUE BIRD, Beautiful Fighters, and ????? I wonder what the 3rd song would've been. Looking at the Secret album none of those tracks would have "fit" in the BLUE BIRD single in my opinion so I like to believe that 3rd song is now a rare unreleased track stuck in the vault
Anyway, I'm just rambling over here lol