Gucci Mane isn't the only one who's able to get music out while being locked up.

C-Murder, who's serving a mandatory life sentence for murder, will leak a track every now and then.

One of them was a diss on his own brother, Master P.

His latest goes after 2 Chainz. At issue is who started the Tru movement. Check out '2 Stainz.'

"I made this Tru shit 2 Chainz, fuck you nigga, pussy ass nigga, ya dick in the booty ass nigga, you’d be a ho if you was in the pen," Murder raps.

New music from C-Murder (feat. VS) available now on #ITUNES. #2Stainz #2ChainzDiss #linkinmybio #trurecords #freecoreymiller #cmurder #freecmurder #truglobal #trurecords #bossalinie @trucmurder @trurecords @bossalinierecords @hairweavekiller

A photo posted by Corey Miller (C Murder) (@trucmurder) on Jan 12, 2016 at 4:13am PST

2 Chainz's response has been ... interesting.

Truuuu hahaa Das hard A video posted by 2 Chainz Aka Tity Boi (@hairweavekiller) on Jan 12, 2016 at 3:06am PST

Ride and vibe #TRU

A video posted by 2 Chainz Aka Tity Boi (@hairweavekiller) on Jan 12, 2016 at 3:29am PST

Well, beefing with a guy who may never see the outside again is awkward.