Conversation so far:
What is The Odd Couple?
Gnarls Barkley second album
When was Gnarl's barkley second album the odd couple released?
it was released digitally on March 18 and in stores March 25, 2008
What songs on Gnarls barkley seond album the odd couple were singles?
Run, Going On and Who's Gonna Save My Soul“
What else is interesting about the album the odd couple by Gnarls barkley ?
In late January, an assumed leaked track appeared on several music blogs.

Question: Versions of what song?
Self-contained rewrite: Versions of what song leaked and appeared on several music blogs?