Looks like Floyd Mayweather just shared a snippet of Lil Wayne and Drake in the studio working on Tha Carter V on his Instagram this afternoon. From the looks of it, and from what Wayne tweeted the other night, we're thinking the song may be called "Believe Me."

This follows Kobe Bryant's tweet from earlier this week that shared Lil Wayne's Tha Carter V promo poster—although there was some confusion about whether or not it was the official single artwork. We confirmed with his publicist that it was not official, and was just a promo shot.

So will Wayne have all athletes participating in his album promo? Who will be next?

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