With the massive attention 50 Cent has garnered from the recent Instagram video calling out Floyd Mayweather's reading disability, XXL couldn't help but think of other times that rappers have embarrassed others or themselves via the social network. From Nelly coupled up with Floyd's ex to Soulja Boy petitioning to get lean back on the market, check out "7 Of The Most Embarrassing Instagrams Posted By Rappers ."