There's a decent amount of evidence surrounding the claims too.
There's decent evidence supporting the claims too. The most basic theories point to Ronny J being the main producer of both diss tracks. Fans are also pointing out that both Em and Kellz are signed to Interscope, leading them to believe that the label had this up their sleeves the entire time.
The most significant theory points to the dates each track was submitted on. One fan noted that "Rap Devil" was actually uploaded to MGK's SoundCloud page six months ago and that it was simply taken off of private settings when it dropped. However, the page in question doesn't appear to be Kelly's official account. It is also worth mentioning that you can easily edit song titles and cover images on SoundCloud.
While a lot of feuds within the music industry are staged, What do you think?