I saw this pop up earlier today, but Bill over at about.com gets props for sharing the new Janet track “Heartbeat Love”. A similar version of this song called “Not My Love” surfaced about a month ago, but that version was credited to Pitbull with Janet listed as “featured”. It’s pretty cool to hear the evolution of a song through these leaks, although I am sure that wasn’t producer Darkchild’s plan. Anyway, here’s the version that leaked last month. Notice the prominent Pitbull rap:

And then here’s the verison that came out today. Not a ton of difference, but you can hear some shifting around in how things are pieced together, with some elements showing up in different spots.