This one is about a girl - the girl Marcy Playground lead singer John Wozniak had an affair with. The girl that came between him and Raine, the woman he would later marry. In our interview with John Wozniak, he explained: "We broke up because I had a relationship with another girl. Yeah, I cheated on Raine. And this other girl turned out to be the biggest mistake of my life. But I thought I was in love at the time. And I was wrong. I just really was infatuated, is what it was. And Raine took me back after some time. (laughing) After a lot of penance paid. Yeah, and I wrote that song about that. 'Blackbird' is, as my mom would call her, 'the girl with the dancing eyes.' That's what my mother would say."
So who is the "Blackbird"? Wozniak says: "Well, it's hard to explain without going into who the girl was, which I don't intend to do, because she is a known person. That's one thing I always promised, nobody would ever know who it was." He adds that the song is a thank you to Raine for taking it all away.