I've read somewhere in the forums of LadyGaga.com that When She Go and greatest were actually the same song. I can't actually believe this due to the fact that Greatest and When She Go had different producers/co-writers. Not to mentioned Greatest doesn't even have the words when she go in the song, and When She Go sounds like a break-up song.

It's kind of like sometimes and Eh,Eh. They're like the same song, but they really aren't. Like an older sister and her younger sibling, only that the younger one got famous.

Also, while I'm on the subject, anyone else think that Your Negativity was a completely different song by Lady Gaga? It's actually Optimist, just using a different name.