It's not exactly against Mr. Hann. Well, it is. It all started with a Youtube video that was aboout Lethal VS Hann, so Lethal made a song to say he's better. Some of the things he said about it:
"he's a good dude,I just had to stand up for myself for that youtube video and I heard they dissed us #Awesome"
But then again he has also said this
"any real mc would laugh at mike shinoda's rapping,come on man,did you forget I was in house of pain and opend the door for W.R" and a few days later retweet some tweet Mike did...
He also thinks the song 'Step Up' is directed to Limp Bizkit
"Yohahn,your my step son,stick to videos and if you scratch,change your sound at least once!Same scratch,every song,I'm kingkong,u a dingdong"