See, it's ALL about the blue tick. If the twitter account ain't got the blue tick (and has about 11,000 followers as opposed to the 12.2million the real Ed Sheeran has) then it's probably someone pretending to be Ed Sheeran (or in this case "edsheersan"). Especially when they're tweeting stuff like...

Doesn't really sound like Ed Sheeran, does it? So why would a fake Ed Sheeran feel bad about Lady Gaga? It's because Us Weekly, followed by innumerable media outlets (ourselves included) picked up on this tweet and reckoned it was real... Then a load of real Ed Sheeran fans started giving the real Lady Gaga a load of flack.  

As for the original tweet, here it is...

Needless to say, Gaga's legion of little monsters have her back...