It's no secret that "Call Me Maybe" is pretty much the biggest sensation ever. Not only has every single person on earth done a cover (including yours truly!), but it's also stayed at number one on the Billboard charts for a whopping seven weeks. And while we're sure Carly Rae Jepsen is over the moon about this, some people aren't taking it so kindly ... one Lady Gaga (heard of her?) tweeted at Carly Rae Jepsen the following ominous threat: "DONT GET COMFORTABLE IM COMING FOR YOU." Well, Carly, you've been warned. Don't mess with the Mother Monster.