J. Cole was among those hit hard by the death of Mac Miller.

He reacted immediately on Twitter.

Rest In Peace to the great soul Mac Miller

— J. Cole (@JColeNC) September 7, 2018

This is a message for anybody in this game that’s going through something. If you don’t feel right, if you feel you have a substance problem, if you need a ear to vent to. If you uncomfortable talking to people around you. Please reach out to me.

— J. Cole (@JColeNC) September 7, 2018

He's also been dedicated his KOD tour shows to Miller, who died of a suspected OD Friday.

He got choked up last night while doing so.

Never seen cole cry. But Mac Miller's death really hit him. Kids on drugs is what his whole KOD album was about. One of his greatest albums yet. The message is to stay away from drugs. Please people. Save your own lives. pic.twitter.com/oW1PbZp7iH

— ARKAD (@ivanefosa) September 9, 2018

The Game also shed tears for his fallen bro.

View this post on Instagram

Wanted to post something yesterday but I was really at a loss for words. Yes, one day we’re all promised death but we don’t like to think that it’s actually going to happen. No matter how much I try to understand the reality of it, it’s pattern & ask the same questions over & over again.... I can never really grasp it the way I need to so I often just let the thoughts fade. And it isn’t until closely reminded by someone that you care about whether friend or family that you once again begin to question our entire existence. I say all that to say..... no matter how you spin it, it is a very painful thought & an even more unfathomable reality. The news I got yesterday of your very untimely demise really hit a spot old friend & although myself & your many fans are in disbelief... your family has to be broken. I just talked to you last week & like always it was comical but nonetheless enough to carry along with your memory as I live out the rest of my days on this earth. Thanks for always being true to yourself & those around you & others. I don’t cry often, but I shed many tears yesterday & sat alone staring at nothing thinking about you bro. You are an irreplaceable soul & I really enjoyed being your friend. All the love in the world goes out to your family & I hope the other side is as beautiful as we all believe. Life......... doesn’t end here for you Mac - your bro “Hoodie Game” as you would say in your Italian mob voice” 🙏🏾 #RestInParadiseMac

A post shared by The Game (@losangelesconfidential) on Sep 8, 2018 at 10:06am PDT